ipython/ipython — pull request #6512 by Carreau (2014-09-21 13:52:40+00:00)
Title: Fix font-awesome icons in examples notebook

just add `class="btn btn-default btn-xs"` and `fa fa-xxx` to all ``.

Closes #6417

@ellisonbg if you work on docs, you might want to cherry-pick that so that there is no conflict !