Merge pull request #32 from punch-mission/develop

Fix docs GH action to use private key

.github/workflows/docs.yaml

@@ -21,6 +21,8 @@ jobs:
 
     - name: Install dependencies
       run: |
+        eval `ssh-agent -s`
+        ssh-add - <<< '${{ secrets.PRIVATE_SSH_KEY }}'
         pip install -r ./docs/requirements.txt
         pip install -r requirements.txt