DOCSP-34684 v2.1.1 release notes (#332)

* DOCSP-34684 v2.1.1 release notes

* Update source/changelog.txt

Co-authored-by: Anna Henningsen <[email protected]>

---------

Co-authored-by: Anna Henningsen <[email protected]>

Author: jmd-mongo

source/changelog.txt

@@ -192,6 +192,17 @@ v2.1.3
 
 `Full release notes available on JIRA <https://jira.mongodb.org/secure/ReleaseNote.jspa?projectId=17381&version=37823>`__.
 
+v2.1.1
+------
+
+*Released December 5, 2023*
+
+- :issue:`MONGOSH-1628` - Statically linking kerberos leads to OpenSSL 
+  version conflict on RHEL8 distros 
+- :issue:`MONGOSH-1651` - Sample sessions sent to telemetry
+
+`Full release notes available on JIRA <https://jira.mongodb.org/secure/ReleaseNote.jspa?projectId=17381&version=37380>`__.
+
 v2.1.0
 ------