Show correct version in index page

Author: marijnh

index.html

@@ -96,7 +96,7 @@ <h2>This is CodeMirror</h2>
       </div>
     </div>
     <div class=actionsleft>
-      Get the current version: <a href="http://codemirror.net/codemirror.zip">5.13</a>.<br>
+      Get the current version: <a href="http://codemirror.net/codemirror.zip">5.13.2</a>.<br>
       You can see the <a href="https://github.com/codemirror/codemirror" title="Github repository">code</a> or<br>
       read the <a href="doc/releases.html">release notes</a>.<br>
       There is a <a href="doc/compress.html">minification helper</a>.