Merge pull request #875 from nobu/method-source-scroll

Allow method source code to scroll

Author: nobu

lib/rdoc/generator/template/darkfish/css/rdoc.css

@@ -505,7 +505,7 @@ main header h3 {
 
 main .method-source-code {
   max-height: 0;
-  overflow: hidden;
+  overflow: auto;
   transition-duration: 200ms;
   transition-delay: 0ms;
   transition-property: all;