Mention pytest-lazy-fixture plugin in the proposal for parametrize_with_fixtures

doc/en/proposals/parametrize_with_fixtures.rst

@@ -116,6 +116,11 @@ Alternative approach
 A new helper function named ``fixture_request`` would tell pytest to yield
 all parameters marked as a fixture.
 
+.. note::
+
+    The `pytest-lazy-fixture <https://pypi.python.org/pypi/pytest-lazy-fixture>`_ plugin implements a very
+    similar solution to the proposal below, make sure to check it out.
+
 .. code-block:: python
 
     @pytest.fixture(params=[