new github action: build and publish a release for new v* version tags

.github/workflows/release.yml

@@ -0,0 +1,31 @@
+name: Build and Release
+
+on:
+  push:
+    tags:
+    - 'v*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.8
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install build
+    - name: Build package
+      run: python -m build
+    - name: Release
+      uses: marvinpinto/[email protected]
+      with:
+        repo_token: "${{ secrets.GITHUB_TOKEN }}"
+#        repo_token: "${{ secrets.RELEASE_TOKEN }}"
+        prerelease: false
+        files: |
+          dist/*
+          LICENSE