docs/index.html in r2-oas-0.1.3 vs docs/index.html in r2-oas-0.2.0

@@ -22,7 +22,8 @@
   <script src="//unpkg.com/docsify/lib/docsify.min.js"></script>
   <script src="//unpkg.com/docsify/lib/plugins/search.min.js"></script>
   <script src="//unpkg.com/docsify/lib/plugins/emoji.min.js"></script>
   <script src="//cdn.jsdelivr.net/npm/prismjs/components/prism-ruby.min.js"></script>
   <script src="//cdn.jsdelivr.net/npm/prismjs/components/prism-bash.min.js"></script>
+  <script src="//cdn.jsdelivr.net/npm/prismjs/components/prism-diff.min.js"></script>
 </body>
 </html>