add publish workflow

.github/workflows/publish.yml

@@ -0,0 +1,16 @@
+name: Build and publish
+
+on:
+  release:
+    types: [released]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: "Build and publish to PyPi"
+        uses: JRubics/[email protected]
+        with:
+          pypi_token: ${{ secrets.PYPI_TOKEN }}