Improve note about raw strings on Windows

Author: domdfcoding

tox_recreate_hook/hooks.py

@@ -49,7 +49,8 @@ def rmdir(path: PathLike) -> str:
 	.. attention::
 
 		On Windows-like systems using ``\`` as a path separator
-		you may need to use a *raw string* for the path:
+		you may need to use a *raw string* for the path as the ``toxinidir``
+		substitution may contain backslashes:
 
 		.. code-block:: ini