Options for version-controlled jsfiddle?

[mccalluc]

• jsfiddle:
  • http://doc.jsfiddle.net/use/github_read.html : Requires a special directory structure, and duplicating the html, but it looks like a good approach. ⭐
  • http://doc.jsfiddle.net/api/post.html : Might be possible for us to construct little inline forms with hidden fields with all the data, but probably more effort than it's worth?
• codepen? It looks like you can reference external code, but you still need to create the pen in the first place: https://blog.codepen.io/documentation/editor/adding-external-resources/
• jsbin? Looks like you can create from gists, but I'm not sure about plain github: https://jsbin.com/help/import-gists

[mccalluc]

Decided to check in just one jsfiddle per tutorial page. Not tested, but seems good enough for now.