add example workflow file

README.md

@@ -16,6 +16,34 @@ steps:
 ```
 >**Note**: This assumes that you've set your Codecov token inside settings > secrets as `CODECOV_TOKEN`. If not, you can get an upload token for your specific repo on codecov.io. A token is not required for public repositories. 
 
+### Example `workflow.yml` with Codecov Action
+
+```yaml
+name: Example workflow for Codecov
+on: [push]
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+   
+    - name: Setup Python  
+      uses: actions/setup-python@master
+      with:
+        version: 3.7
+
+    - name: Generate coverage report
+      run: |
+        pip install pytest
+        pip install pytest-cov
+        pytest --cov=./ --cov-report=xml
+
+    - name: Upload coverage to Codecov  
+      uses: codecov/codecov-action@v0.2
+      with:
+        token: ${{secrets.CODECOV_TOKEN}}
+```
+
 ## Arguments
 
 | Argument  | Description |