Force docs to develop branch

Author: jhodges10

.github/workflows/documentation.yml

@@ -11,6 +11,7 @@ jobs:
       - uses: actions/checkout@master
         with:
           fetch-depth: 0 # otherwise, you will failed to push refs to dest repo
+          ref: develop
       - name: Build and Commit
         uses: sphinx-notes/pages@v2
         with: