Fix Dead link in README for 'assert statements'

Closes: #8926

README.rst

@@ -79,7 +79,7 @@ Due to ``pytest``'s detailed assertion introspection, only plain ``assert`` stat
 Features
 --------
 
-- Detailed info on failing `assert statements <https://docs.pytest.org/en/stable/how-to/assert.html>`_ (no need to remember ``self.assert*`` names)
+- Detailed info on failing `assert statements <https://docs.pytest.org/en/stable/assert.html>`_ (no need to remember ``self.assert*`` names)
 
 - `Auto-discovery
   <https://docs.pytest.org/en/stable/explanation/goodpractices.html#python-test-discovery>`_