🐎ci: add release document workflow

Author: zillionare

.github/workflows/docs.yml

@@ -0,0 +1,52 @@
+# Publish document if it's tagged with 'doc*'
+
+name: document release
+
+# Controls when the action will run.
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branch: release
+    tags:
+      - 'doc*'
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  release:
+    name: release document
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        python-versions: [3.8]
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+
+
+      - uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-versions }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install tox-gh-actions poetry
+
+      - name: pre-publish documentation
+        run: |
+          poetry install -E dev
+          poetry run mkdocs build
+
+      - name: publish documentation
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          personal_token: ${{ secrets.PERSONAL_TOKEN }}
+          publish_dir: ./site