Fix upgrade path for 12.0

doc/update/README.md

@@ -180,15 +180,14 @@ any downgrades would result to all sessions being invalidated and users are logg
 
 In 12.0.0 we made various database related changes. These changes require that
 users first upgrade to the latest 11.11 patch release. Once upgraded to 11.11.x,
-users can upgrade to 12.x. Failure to do so may result in database migrations
+users can upgrade to 12.0.x. Failure to do so may result in database migrations
 not being applied, which could lead to application errors.
 
 Example 1: you are currently using GitLab 11.11.3, which is the latest patch
-release for 11.11.x. You can upgrade as usual to 12.0.0, 12.1.0, etc.
+release for 11.11.x. You can upgrade as usual to 12.0.x.
 
 Example 2: you are currently using a version of GitLab 10.x. To upgrade, first
-upgrade to 11.11.3. Once upgraded to 11.11.3 you can safely upgrade to 12.0.0
-or future versions.
+upgrade to 11.11.3. Once upgraded to 11.11.3 you can safely upgrade to 12.0.x.
 
 ## Miscellaneous