Add link to the new pysonar in the deprecation notice

Author: ghislainpiot

README.md

@@ -3,7 +3,7 @@
 
 This application is no longer actively maintained and has been deprecated in favor of `pysonar`. `pysonar` offers a more Python-centric experience and support for newer versions of SonarQube.
 
-**Please migrate to `pysonar` for all future usage.**
+**Please migrate to [`pysonar`](https://pypi.org/project/pysonar/) for all future usage.**
 
 You can install it via pip:
 `pip install pysonar`