create publish workflow

.github/workflows/publish.yml

@@ -0,0 +1,27 @@
+name: Publish
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  deploy:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.7'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install poetry
+    - name: Build and publish
+      run: |
+        poetry version $(git describe --tags --abbrev=0)
+        poetry config pypi-token.pypi ${{ secrets.PYPI_API_TOKEN }}
+        poetry build
+        poetry publish