Revert "Revert "Create gh-pages branch via GitHub""

This reverts commit 6bc84fc7a2cea1ab4e7c45d159d9fc9211e3734c.
Revert "Revert "Revert "Create gh-pages branch via GitHub"""

This reverts commit b91829a126d83f891ac9458f2657e4395a1525d7.