Mention Chrome extension (#67)

README.md

@@ -10,6 +10,14 @@ instead of reading it.
 1.  Install packages with: `npm install`
 2.  Run with: `npm run dev`
 
+### Chrome Extension
+
+WebRICE is also available as an extension on the Chrome web store:
+[https://chrome.google.com/webstore/detail/webrice/mmijkiiefioinbdgbadgghcchfilmlmp](https://chrome.google.com/webstore/detail/webrice/mmijkiiefioinbdgbadgghcchfilmlmp).
+The code for the extension is in the
+[webrice-chrome-extension](https://github.com/cadia-lvl/webrice-chrome-extension)
+repo.
+
 ## Usage
 To include WebRICE's compiled CSS and JS in your website, add the following lines:
 

build/index.html

@@ -46,6 +46,7 @@
           <div class="navbar-nav">
             <a class="nav-link" href="maltaekni.html">Dæmi 1</a>
             <a class="nav-link" href="solskin.html">Dæmi 2</a>
+            <a class="nav-link" href="https://chrome.google.com/webstore/detail/webrice/mmijkiiefioinbdgbadgghcchfilmlmp">Chrome viðbót</a>
             <a class="nav-link" href="https://docs.google.com/forms/d/e/1FAIpQLSdcyoUambWJeX_FvHG5UacE68xIa7UNGvHlKUhchT42NJO1ZQ/viewform" target="_blank">Notandakönnun</a>
             <a class="nav-link" href="throun.html">Þróun</a>
           </div>

build/maltaekni.html

@@ -23,6 +23,7 @@
           <div class="navbar-nav">
             <a class="nav-link active" aria-current="page" href="maltaekni.html">Dæmi 1 <span class="sr-only">(current)</span></a>
             <a class="nav-link" href="solskin.html">Dæmi 2</a>
+            <a class="nav-link" href="https://chrome.google.com/webstore/detail/webrice/mmijkiiefioinbdgbadgghcchfilmlmp">Chrome viðbót</a>
             <a class="nav-link" href="https://docs.google.com/forms/d/e/1FAIpQLSdcyoUambWJeX_FvHG5UacE68xIa7UNGvHlKUhchT42NJO1ZQ/viewform" target="_blank">Notandakönnun</a>
             <a class="nav-link" href="throun.html">Þróun</a>
           </div>

build/solskin.html

@@ -23,6 +23,7 @@
           <div class="navbar-nav">
             <a class="nav-link" href="maltaekni.html">Dæmi 1</a>
             <a class="nav-link active" aria-current="page" href="solskin.html">Dæmi 2<span class="sr-only">(current)</span></a>
+            <a class="nav-link" href="https://chrome.google.com/webstore/detail/webrice/mmijkiiefioinbdgbadgghcchfilmlmp">Chrome viðbót</a>
             <a class="nav-link" href="https://docs.google.com/forms/d/e/1FAIpQLSdcyoUambWJeX_FvHG5UacE68xIa7UNGvHlKUhchT42NJO1ZQ/viewform" target="_blank">Notandakönnun</a>
             <a class="nav-link" href="throun.html">Þróun</a>
           </div>