Merge pull request matplotlib#23753 from meeseeksmachine/auto-backport-of-pr-23750-on-v3.5.x

Backport PR matplotlib#23750 on branch v3.5.x (Fix rcParams documentation)

Author: QuLogic

doc/sphinxext/custom_roles.py

@@ -43,7 +43,7 @@ def depart_query_reference_node(self, node):
 def rcparam_role(name, rawtext, text, lineno, inliner, options={}, content=[]):
     # Generate a pending cross-reference so that Sphinx will ensure this link
     # isn't broken at some point in the future.
-    title = f'rcParam["{text}"]'
+    title = f'rcParams["{text}"]'
     target = 'matplotlibrc-sample'
     ref_nodes, messages = inliner.interpreted(title, f'{title} <{target}>',
                                               'ref', lineno)

lib/matplotlib/mpl-data/matplotlibrc

@@ -5,10 +5,7 @@
 ## This is a sample Matplotlib configuration file - you can find a copy
 ## of it on your system in site-packages/matplotlib/mpl-data/matplotlibrc
 ## (relative to your Python installation location).
-##
-## You should find a copy of it on your system at
-## site-packages/matplotlib/mpl-data/matplotlibrc (relative to your Python
-## installation location).  DO NOT EDIT IT!
+## DO NOT EDIT IT!
 ##
 ## If you wish to change your default style, copy this file to one of the
 ## following locations: