DOC fix incorrect branch reference in contributing doc
@@ -251,7 +251,7 @@ modifying code and submitting a PR:
to record your changes in Git, then push the changes to your GitHub
account with::
- $ git push -u origin my-feature
+ $ git push -u origin my_feature
10. Follow `these
<https://help.github.com/articles/creating-a-pull-request-from-a-fork>`_
