Add publish_pypi action (#2)

.github/workflows/publish_pypi.yml

@@ -0,0 +1,32 @@
+name: publish_pypi
+
+on:
+  release:
+    types: created
+
+jobs:
+  release:
+    name: Publish to PyPI
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Python 3.8
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.8"
+
+      - name: Install Poetry
+        uses: abatilo/[email protected]
+        with:
+          poetry-version: 1.1.6
+
+      - name: Build
+        run: poetry build
+
+      - name: Upload
+        env:
+          POETRY_PYPI_TOKEN_PYPI: ${{ secrets.PYPI_TOKEN }}
+        run: poetry publish