Update Discord invite instructions

Author: savannahostrowski

peps/pep-0101.rst

@@ -157,8 +157,8 @@ As much as possible, the release is automated and guided by the
 `python/release-tools`_. This helps by automating many of the following steps,
 and guides you to perform some manual steps.
 
-- Log into Discord and join the Python Core Devs server. Ask Thomas
-  or Łukasz for an invite.
+- Log into Discord and join the Python Core Devs server. Ask another
+  RM for an invite.
 
   You probably need to coordinate with other people around the world.
   This communication channel is where we've arranged to meet.