Add deprecation notice to documentation for unmaintained project (#10)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: schettino72 <138474+schettino72@users.noreply.github.com>

Author: Copilot

README.rst

@@ -8,6 +8,14 @@
    :target: https://github.com/pytest-dev/pytest-incremental/actions?query=workflow%3Atest
 
 
+.. 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+   **DEPRECATED: This project is no longer maintained.**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.
+
+
 pytest-incremental
 ====================
 

docs/index.rst

@@ -7,6 +7,13 @@
 pytest-incremental: py.test plugin - incremental test runner
 ============================================================
 
+.. 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+   **DEPRECATED: This project is no longer maintained.**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.
+
 
 Github:
     https://github.com/pytest-dev/pytest-incremental