Update src/PIL/ImageChops.py

Apply wording suggestions about ImageChops.multiply

Co-authored-by: Andrew Murray <3112309+radarhere@users.noreply.github.com>

Author: d0sboots

src/PIL/ImageChops.py

@@ -240,8 +240,10 @@ def subtract_modulo(image1, image2):
 def logical_and(image1, image2):
     """Logical AND between two images.
 
-    Both of the images must have mode "1". For an AND in RGB mode, use a
-    multiply() by a black-and-white mask.
+    Both of the images must have mode "1". If you would like to perform a
+    logical AND on an image with a mode other than "1", try
+    :py:meth:`~PIL.ImageChops.multiply` instead, using a black-and-white mask
+    as the second image.
 
     .. code-block:: python