Attempt #4 github actions build

Author: whoseoyster

.github/workflows/docs.yml

@@ -18,12 +18,9 @@ jobs:
       uses: actions/setup-python@v1
       with:
         python-version: 3.8
-    - name: Install dependencies
-      run: |
-        pip install -r requirements-docs.txt
-        pip install -e .
     - uses: ammaraskar/sphinx-action@master
       with:
+        pre-build-command: "pip install -e ."
         docs-folder: "docs/"
     # ===============================
     - name: Commit documentation changes