Fixed #25814 -- Added changing #django topic to release checklist.

docs/internals/howto-release-django.txt

@@ -340,6 +340,9 @@ Now you're ready to actually put the release out there. To do this:
    announcement blog post. If this is a security release, also include
    oss-security@lists.openwall.com.
 
+#. Add a link to the blog post in the topic of the #django IRC channel:
+   ``/msg chanserv TOPIC #django new topic goes here``.
+
 Post-release
 ============