Merge pull request #21: CI: Add wheel

.github/workflows/test-and-publish.yml

@@ -69,7 +69,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
-        pip install setuptools
+        pip install setuptools wheel
     - name: build distribution packages
       run: python setup.py sdist bdist_wheel
     - name: Build and publish to PyPI