Merge pull request matplotlib#23215 from jklymak/doc-link-transforms-tutorial

DOC: link the transforms tutorial from the module

Author: timhoffm

lib/matplotlib/transforms.py

@@ -27,6 +27,9 @@
 
 The backends are not expected to handle non-affine transformations
 themselves.
+
+See the tutorial :doc:`/tutorials/advanced/transforms_tutorial` for examples
+of how to use transforms.
 """
 
 # Note: There are a number of places in the code where we use `np.min` or