Add deprecation notice to documentation for unmaintained project

[Copilot]

Project is no longer maintained. Replacement being developed at schettino72/rut, built on unittest directly rather than as a pytest plugin.

Changes

• Documentation: Added deprecation notices to README.rst and docs/index.rst

Documentation-only changes per maintainer request. No code modifications, runtime warnings, or version changes. The plugin continues to function as before, with users informed about the deprecation through documentation.

Documentation Updates

Both README and docs now display a prominent warning at the top:

.. warning::

   **DEPRECATED: This project is no longer maintained.**
   
   A replacement project is being developed at `schettino72/rut <https://github.com/schettino72/rut>`_.
   The new project is built on unittest directly and is not a pytest plugin.

Original prompt

this project is not maintained anymore. a "replacement" is being developed on schettino72/rut built on unittest directly not a pytest plugin.

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[schettino72]

no need to change the code. just a note on docs/readme is good enough

[schettino72]

no need to change the code. just a note on docs/readme is good enough

[Copilot]

no need to change the code. just a note on docs/readme is good enough

Reverted code changes in commit 23ae8a6. Now only README.rst and docs/index.rst have deprecation notices.

no need to change the code. just a note on docs/readme is good enough

Reverted code changes in commit 23ae8a6. Now only README.rst and docs/index.rst have deprecation notices.