Address JS feedback

Author: mcmorisi

source/upgrade.txt

@@ -27,8 +27,8 @@ Before you upgrade, perform the following actions:
 
 - Ensure the new version is compatible with the {+mdb-server+} versions
   your application connects to and the Java Runtime Environment (JRE) your
-  application runs on. See the :ref:`Java Compatibility <java-rs-compatibility>`
-  page for this information.
+  application runs on. See the :ref:`Compatibiliity page <java-rs-compatibility>`
+  for this information.
 - Address any breaking changes between the current version of the driver
   your application is using and your planned upgrade version in the
   :ref:`Breaking Changes <java-rs-breaking-changes>` section. To learn