Add link to contributing documentation in CONTRIBUTING.md (django-commons#2086)

Author: blingblin-g

CONTRIBUTING.md

@@ -1,5 +1,11 @@
+# Contributing to Django Debug Toolbar
+
 This is a [Django Commons](https://github.com/django-commons/) project. By contributing you agree to abide by the [Contributor Code of Conduct](https://github.com/django-commons/membership/blob/main/CODE_OF_CONDUCT.md).
 
-Please see the
-[README](https://github.com/django-commons/membership/blob/main/README.md)
-for more help.
+## Documentation
+
+For detailed contributing guidelines, please see our [Documentation](https://django-debug-toolbar.readthedocs.io/en/latest/contributing.html).
+
+## Additional Resources
+
+Please see the [README](https://github.com/django-commons/membership/blob/main/README.md) for more help.

docs/changes.rst

@@ -10,6 +10,7 @@ Pending
 * Wrap ``SHOW_TOOLBAR_CALLBACK`` function with ``sync_to_async``
   or ``async_to_sync`` to allow sync/async compatibility.
 * Make ``require_toolbar`` decorator compatible to async views.
+* Added link to contributing documentation in ``CONTRIBUTING.md``.
 
 5.0.1 (2025-01-13)
 ------------------