Rename learn more section to further reading

css/index.css

@@ -447,7 +447,7 @@ aside.tip::before {
   background-image: url('../images/emoji/0010_2705.svg'); /* Check mark. */
 }
 
-#learn-more h3::before {
+#further-reading h3::before {
   background-image: url('../images/emoji/0030_1f4d6.svg'); /* Open book. */
 }
 

index.html

@@ -299,8 +299,8 @@ EOF</code></pre>
     <p>For full details, see the <a href='https://github.com/small-tech/site.js/blob/master/README.md#dynamic-sites'>Dynamic Sites documentation</a> and view the <a href='https://github.com/small-tech/site.js/tree/master/examples'>examples</a>.</p>
   </aside>
 
-  <section id='learn-more' class='highlights'>
-    <h2>Learn more</h2>
+  <section id='further-reading' class='highlights'>
+    <h2>Further reading</h2>
 
     <ul>
       <li>