Fixing a PR created from the gh pages branch

Please follow the steps below in order to move changes you introduced on the gh-pages branch to a different branch.

1. Save changes in my-changes branch.

git checkout gh-pages
git branch my-changes

2. Sync your gh-pages with our repository

git fetch https://github.com/swcarpentry/python-novice-inflammation
git reset --hard FETCH_HEAD

3. Push my-changes branch to your fork

git checkout my-changes
git push your-fork