Merge pull request #182 from integer32llc/hljs-class

Add hljs class to all code blocks, regardless of highlighting

src/theme/book.js

@@ -23,6 +23,10 @@ $( document ).ready(function() {
         hljs.highlightBlock(block);
     });
     
+    // Adding the hljs class gives code blocks the color css
+    // even if highlighting doesn't apply
+    $('code').addClass('hljs');
+
     var KEY_CODES = {
         PREVIOUS_KEY: 37,
         NEXT_KEY: 39