WIP: update xrefs to use new IntersectionObserver terms

See w3c/IntersectionObserver#427

source

@@ -6927,15 +6927,8 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
    <li><p>Let <var>doc</var> be <var>element</var>'s <span>node document</span>.</p></li>
 
    <li>
-    <p>If <var>doc</var>'s <span>lazy load intersection observer</span> is null, set it to a new
-    <code>IntersectionObserver</code> instance, initialized as follows:</p>
-
-    <p class="XXX">The intention is to use the original value of the
-    <code>IntersectionObserver</code> constructor. However, we're forced to use the
-    JavaScript-exposed constructor in this specification, until <cite>Intersection Observer</cite>
-    exposes low-level hooks for use in specifications. See bug <a
-    href="https://github.com/w3c/IntersectionObserver/issues/427">w3c/IntersectionObserver#427</a>
-    which tracks this. <ref spec="INTERSECTIONOBSERVER"></p>
+    <p>If <var>doc</var>'s <span>lazy load intersection observer</span> is null, set it to the
+    result of <span>initialize a new IntersectionObserver</span>, initialized as follows:</p>
 
     <ul>
      <li>
@@ -6944,36 +6937,31 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
 
       <ol>
        <li>
-        <p>For each <var>entry</var> in <var>entries</var> <span class="XXX">using a method of
+        <p>For each <var>entry</var> in <var>entries</var> (TODO) <span class="XXX">using a method of
         iteration which does not trigger developer-modifiable array accessors or
         iteration hooks</span>:</p>
 
+
         <ol>
          <li><p>Let <var>resumptionSteps</var> be null.</p></li>
 
          <li><p>If <var>entry</var>.<code
-         data-x="dom-IntersectionObserverEntry-isIntersecting">isIntersecting</code> is true, then
+         data-x="dom-IntersectionObserverEntry-isIntersecting">isIntersecting</code> (TODO) is true, then
          set <var>resumptionSteps</var> to <var>entry</var>.<code
          data-x="dom-IntersectionObserverEntry-target">target</code>'s
          <span>lazy load resumption steps</span>.</p></li>
 
          <li><p>If <var>resumptionSteps</var> is null, then return.</p></li>
 
          <li><p><span>Stop intersection-observing a lazy loading element</span> for
-         <var>entry</var>.<code data-x="dom-IntersectionObserverEntry-target">target</code>.</p></li>
+         <var>entry</var>.<code data-x="dom-IntersectionObserverEntry-target">target</code> (TODO).</p></li>
 
          <li><p>Set <var>entry</var>.<code
-         data-x="dom-IntersectionObserverEntry-target">target</code>'s <span>lazy load resumption
+         data-x="dom-IntersectionObserverEntry-target">target</code>'s (TODO) <span>lazy load resumption
          steps</span> to null.</p></li>
 
          <li><p>Invoke <var>resumptionSteps</var>.</p></li>
         </ol>
-
-        <p class="XXX">The intention is to use the original value of the
-        <code data-x="dom-IntersectionObserverEntry-isIntersecting">isIntersecting</code> and
-        <code data-x="dom-IntersectionObserverEntry-target">target</code> getters. See <a
-        href="https://github.com/w3c/IntersectionObserver/issues/427">w3c/IntersectionObserver#427</a>.
-        <ref spec="INTERSECTIONOBSERVER"></p>
        </li>
       </ol>
      </li>
@@ -6995,14 +6983,8 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
    </li>
 
    <li>
-    <p>Call <var>doc</var>'s <span>lazy load intersection observer</span>'s <code
-    data-x="dom-IntersectionObserver-observe">observe</code> method with <var>element</var> as the
-    argument.</p>
-
-    <p class="XXX">The intention is to use the original value of the <code
-    data-x="dom-IntersectionObserver-observe">observe</code> method. See <a
-    href="https://github.com/w3c/IntersectionObserver/issues/427">w3c/IntersectionObserver#427</a>.
-    <ref spec="INTERSECTIONOBSERVER"></p>
+    <p>Run the <span>observe a target Element</span> algorithm, providing <var>doc</var>'s
+    <span>lazy load intersection observer</span> and <var>element</var>.</p>
    </li>
   </ol>
 
@@ -7016,14 +6998,8 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
    null.</p></li>
 
    <li>
-    <p>Call <var>doc</var>'s <span>lazy load intersection observer</span> <code
-    data-x="dom-IntersectionObserver-unobserve">unobserve</code> method with <var>element</var> as
-    the argument.</p>
-
-    <p class="XXX">The intention is to use the original value of the <code
-    data-x="dom-IntersectionObserver-unobserve">unobserve</code> method. See <a
-    href="https://github.com/w3c/IntersectionObserver/issues/427">w3c/IntersectionObserver#427</a>.
-    <ref spec="INTERSECTIONOBSERVER"></p>
+    <p>Run the <span>unobserve a target Element</span> algorithm, providing <var>doc</var>'s
+    <span>lazy load intersection observer</span> and <var>element</var>.</p>
    </li>
   </ol>