setup GitHub Actions

Author: delabiejochen

.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
       - uses: actions/setup-python@v2
         with:
           python-version: '3.x'
-          - run: python tests/test_client.py
+      - run: python tests/test_client.py
         env:
           TB_KEY: ${{ secrets.TB_KEY }}
           TB_SECRET: ${{ secrets.TB_SECRET }}