add publish CI

.github/workflows/publish.yml

@@ -0,0 +1,25 @@
+name: pypi
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.8'
+      - name: Install Dependencies
+        run: pip install poetry
+      - name: Build & Upload
+        env:
+          PYPI_TOKEN: ${{ secrets.PYPI_TOKEN }}
+        run: |
+          poetry config pypi-token.pypi $PYPI_TOKEN
+          poetry version $(git describe --tags --abbrev=0)
+          poetry build
+          poetry publish