added assigning and duplicating section heading to contribute guide

story645 · web-flow · commit a3d77d1a63d9 · 2023-04-20T15:34:40.000-04:00
The paragraph on assigning issues and duplicating PRs is the last paragraph of the section for new contributors, so I just added a section title to make it clear that it's a general policy and not just for new contributors.
diff --git a/doc/devel/contributing.rst b/doc/devel/contributing.rst
@@ -82,6 +82,9 @@ though not necessarily all at the same time:
 - It involves Python features such as decorators and context managers, which
   have subtleties due to our implementation decisions.
 
+Assigning Issues and Duplicating PRs
+------------------------------------
+
 In general, the Matplotlib project does not assign issues. Issues are
 "assigned" or "claimed" by opening a PR; there is no other assignment
 mechanism. If you have opened such a PR, please comment on the issue thread to
