add workflow to publish to pypi

Author: attwad

.github/workflows/publish-pypi.yml

@@ -0,0 +1,31 @@
+name: Publish to PyPI
+on: push
+jobs:
+    build-n-publish:
+        name: Build and publish to PyPI
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v3
+            - name: Set up Python
+              uses: actions/setup-python@v4
+              with:
+                python-version: "3.x"
+            - name: Install pypa/build
+              run: >-
+                  python3 -m
+                  pip install
+                  build
+                  --user
+            - name: Build a binary wheel and a source tarball
+              run: >-
+                  python3 -m
+                  build
+                  --sdist
+                  --wheel
+                  --outdir dist/
+                  .
+            - name: Publish distribution 📦 to PyPI
+              if: startsWith(github.ref, 'refs/tags')
+              uses: pypa/gh-action-pypi-publish@release/v1
+              with:
+                password: ${{ secrets.PYPI_KEY }}