Add workflow to make Github release on tags

.github/workflows/release.yml

@@ -0,0 +1,31 b''
+name: Github releases
+
+on:
+  push:
+    tags:
+      - '*.*.*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Python 3.9
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.9
+
+      - name: Make packages
+        run: |
+          pip install --upgrade setuptools wheel
+          rm -rf dist/
+          python setup.py sdist
+          python setup.py bdist_wheel
+
+      - name: Github release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: dist/*
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}