Add coverage badge

Author: JeanElsner

.github/workflows/python.yml

@@ -40,7 +40,7 @@ jobs:
       run: |
         pytest --cov=adnap --cov-report xml:coverage.xml
         coverage report
-    - name: upload coverage to Codecov
+    - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v3
       with:
         file: ./coverage.xml

README.md

@@ -1,2 +1,4 @@
 # ADNAP
-Reverse engineer the Panda dynamics model.
+Reverse engineer the Panda dynamics model.
+
+[![codecov](https://codecov.io/gh/JeanElsner/adnap/branch/main/graph/badge.svg?token=6GOKVDXZJ9)](https://codecov.io/gh/JeanElsner/adnap)