Add github workflow to automate pypi release

.github/workflows/publish_to_pypi.yml

@@ -0,0 +1,31 @@
+name: Publish the app distributions to PyPI
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+    build-n-publish:
+      name: Build and publish the app distribution to PyPI
+      runs-on: ubuntu-18.04
+      steps:
+        - uses: actions/checkout@master
+        - name: Set up Python 2.7
+          uses: actions/setup-python@v1
+          with:
+            python-version: 2.7
+
+        - name: Install twine and wheel
+          run: |
+            python -m pip install twine wheel
+
+        - name: Build a binary wheel and a source tarball
+          run: |
+            python setup.py sdist bdist_wheel
+
+        - name: Publish distribution 📦 to PyPI
+          uses: pypa/gh-action-pypi-publish@master
+          with:
+            user: __token__
+            password: ${{ secrets.PYPI_SECRET }}