Revert "Create gh-pages branch via GitHub"

This reverts commit 0ca2f7e54ee70ca1e66cde0aaf6235245d92f226.
Revert "Revert "Create gh-pages branch via GitHub""

This reverts commit 990c6b8bb611c59cd7c060eb130e7566b1495c90.
Revert "Revert "Revert "Create gh-pages branch via GitHub"""

This reverts commit ac3d005bc91cbfb50f246af396bc32038c5c4f39.