docs(readme): Add Pytest Cov as an alternative for code coverage (#106)

Co-authored-by: Médéric Hurier (Fmind) <mederic.hurier@fmind.dev>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: 3 people

README.md

@@ -434,7 +434,7 @@ Edition, validation, and versioning of your project source code.
 - **Limitations**:
   - None
 - **Alternatives**:
-  - None?
+-  - [Pytest Cov](https://pytest-cov.readthedocs.io/en/latest/) A Pytest plugin that uses `coverage.py` to measure code coverage.
 
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