(DOCSP-45638) [C2C] Add limitation for in-place major & minor server version upgrades (#519) (#521)

* (DOCSP-45638) Added limitation to list.

* (DOCSP-45638) Update link.

* (DOCSP-45638) Update link.

* (DOCSP-45638) Update link.

* (DOCSP-45638) Edit link

Author: elyse-mdb

source/reference/limitations.txt

@@ -33,6 +33,8 @@ General Limitations
   For information on MongoDB server compatility, see
   :ref:`c2c-server-version-compatibility`.
 
+- ``mongosync`` does not support in-place server version upgrades that change the major or minor version during a migration. ``mongosync`` does allow patch version upgrades. 
+  To learn more, see the :ref:`server upgrade instructions <upgrade-to-latest-revision>`.
 - The destination cluster must be empty.
 - ``mongosync`` doesn't validate that the clusters or the environment
   are properly configured.