Merge pull request matplotlib#31475 from rcomer/readme-chat

Purge gitter links

Author: timhoffm

.github/ISSUE_TEMPLATE/config.yml

@@ -7,5 +7,5 @@ contact_links:
     url: https://discourse.matplotlib.org
     about: If you have a usage question
   - name: Chat with devs
-    url: https://gitter.im/matplotlib/matplotlib
+    url: https://discourse.matplotlib.org/chat/c/matplotlib/2
     about: Ask short questions about contributing to Matplotlib

.github/workflows/pr_welcome.yml

@@ -32,9 +32,9 @@ jobs:
             experience to go through the review process.
 
 
-            You can also join us [on
-            gitter](https://gitter.im/matplotlib/matplotlib) for real-time
-            discussion.
+            You can also join us [on discourse
+            chat](https://discourse.matplotlib.org/chat/c/matplotlib/2) for
+            real-time discussion.
 
 
             For details on testing, writing docs, and our review process,

README.md

@@ -5,7 +5,7 @@
 [![LFX Health Score](https://insights.linuxfoundation.org/api/badge/health-score?project=matplotlib)](https://insights.linuxfoundation.org/project/matplotlib)
 
 [![Discourse help forum](https://img.shields.io/badge/help_forum-discourse-blue.svg)](https://discourse.matplotlib.org)
-[![Gitter](https://badges.gitter.im/matplotlib/matplotlib.svg)](https://gitter.im/matplotlib/matplotlib)
+[![Discourse chat](https://img.shields.io/badge/chat-discourse-mediumaquamarine)](https://discourse.matplotlib.org/chat/c/matplotlib/2)
 [![GitHub issues](https://img.shields.io/badge/issue_tracking-github-blue.svg)](https://github.com/matplotlib/matplotlib/issues)
 [![Contributing](https://img.shields.io/badge/PR-Welcome-%23FF8300.svg?)](https://matplotlib.org/stable/devel/index.html)
 
@@ -61,9 +61,9 @@ Our active mailing lists (which are mirrored on Discourse) are:
 -   [Development](https://mail.python.org/mailman/listinfo/matplotlib-devel)
     mailing list: <matplotlib-devel@python.org>
 
-[Gitter](https://gitter.im/matplotlib/matplotlib) is for coordinating
-development and asking questions directly related to contributing to
-matplotlib.
+[Discourse Chat](https://discourse.matplotlib.org/chat/c/matplotlib/2) is for
+coordinating development and asking questions directly related to contributing
+to matplotlib.
 
 ## Citing Matplotlib