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index c29044b..bfb0384 100644
--- a/LICENSE.html
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diff --git a/aio.html b/aio.html
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 <div class="accordion-body">
 <p>Creates a substring from index 1 up to (not including) the final
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   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
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 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
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 <div class="accordion-body">
 <p>A ‘gotcha’ with array indexing is that singleton dimensions are
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 <div class="accordion-body">
 <p>An alternative way to achieve the same result is to use Numpy’s
 delete function to remove the second column of A. If you’re not sure
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 <div class="accordion-body">
 <p>Since the row axis (0) is patients, it does not make sense to get the
 difference between two arbitrary patients. The column axis (1) is in
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 <div class="accordion-body">
 <p>The shape will be <code>(60, 39)</code> because there is one fewer
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 <div class="accordion-body">
 <p>By using the <code>numpy.amax()</code> function after you apply the
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 <div class="accordion-body">
 <p>Because matplotlib normally sets x and y axes limits to the min and
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 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
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 <div class="accordion-body">
 <p>Because matplotlib interpolates (draws a straight line) between the
 points. One way to do avoid this is to use the Matplotlib
@@ -2189,7 +2189,7 @@ <h3 class="callout-title">Make Your Own Plot</h3>
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 <div class="accordion-body">
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diff --git a/instructor/404.html b/instructor/404.html
index 843ee97..9364d07 100644
--- a/instructor/404.html
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diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index 2749914..f871038 100644
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diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 001b62f..3e7ee62 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -489,7 +489,7 @@ <h1>Licenses</h1>
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diff --git a/instructor/additional_material.html b/instructor/additional_material.html
index fc93318..d2aa5dd 100644
--- a/instructor/additional_material.html
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diff --git a/instructor/aio.html b/instructor/aio.html
index c6df659..8c4f800 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
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 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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@@ -1400,7 +1400,7 @@ <h3 class="callout-title">Slicing Strings<em> (continued)</em>
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   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper">
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@@ -1430,7 +1430,7 @@ <h3 class="callout-title">Slicing Strings<em> (continued)</em>
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   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Creates a substring from index 1 up to (not including) the final
 index, effectively removing the first and last letters from ‘oxygen’</p>
@@ -1459,7 +1459,7 @@ <h3 class="callout-title">Slicing Strings<em> (continued)</em>
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   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
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@@ -1504,7 +1504,7 @@ <h3 class="callout-title">Thin Slices</h3>
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   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <div class="codewrapper">
 <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1573,7 +1573,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution6" aria-expanded="false" aria-controls="collapseSolution6">
   <h4 class="accordion-header" id="headingSolution6"> Show me the solution </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <p>A ‘gotcha’ with array indexing is that singleton dimensions are
 dropped by default. That means <code>A[:, 0]</code> is a one dimensional
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   <h4 class="accordion-header" id="headingSolution7"> Show me the solution </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <p>An alternative way to achieve the same result is to use Numpy’s
 delete function to remove the second column of A. If you’re not sure
@@ -1688,7 +1688,7 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution8" aria-expanded="false" aria-controls="collapseSolution8">
   <h4 class="accordion-header" id="headingSolution8"> Show me the solution </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
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 <div class="accordion-body">
 <p>Since the row axis (0) is patients, it does not make sense to get the
 difference between two arbitrary patients. The column axis (1) is in
@@ -1723,7 +1723,7 @@ <h3 class="callout-title">Change In Inflammation<em>
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   <h4 class="accordion-header" id="headingSolution9"> Show me the solution </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <p>The shape will be <code>(60, 39)</code> because there is one fewer
 difference between columns than there are columns in the data.</p>
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   <h4 class="accordion-header" id="headingSolution10"> Show me the solution </h4>
 </button>
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 <div class="accordion-body">
 <p>By using the <code>numpy.amax()</code> function after you apply the
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@@ -2056,7 +2056,7 @@ <h3 class="callout-title">Plot Scaling</h3>
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   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Because matplotlib normally sets x and y axes limits to the min and
 max of our data (depending on data range)</p>
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 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
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 </button>
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   <h4 class="accordion-header" id="headingSolution4"> Show me the solution </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Because matplotlib interpolates (draws a straight line) between the
 points. One way to do avoid this is to use the Matplotlib
@@ -2198,7 +2198,7 @@ <h3 class="callout-title">Make Your Own Plot</h3>
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution5" aria-expanded="false" aria-controls="collapseSolution5">
   <h4 class="accordion-header" id="headingSolution5"> Show me the solution </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
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   <h4 class="accordion-header" id="headingSolution6"> Show me the solution </h4>
 </button>
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 <div class="accordion-body">
 <p>Use negative indices to count elements from the end of a container
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   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
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+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>To obtain every other character you need to provide a slice with the
 step size of 2:</p>
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 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution3" aria-expanded="false" aria-controls="collapseSolution3">
   <h4 class="accordion-header" id="headingSolution3"> Show me the solution </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
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 <div class="accordion-body">
 <p>The multiplication operator <code>*</code> used on a list replicates
 elements of the list and concatenates them together:</p>
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 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
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 <div class="accordion-body">
 <p>The body of the loop is executed 6 times.</p>
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@@ -3579,7 +3579,7 @@ <h3 class="callout-title">Plotting Differences</h3>
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   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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