Update NFS kernel compatibility documentation

We patched Ruby on certain versions of GitLab to avoid kernel issues on
RedHat/CentOS. This documentation makes it clearer that upgrading GitLab
to one of these versions should make this kernel version work.

doc/administration/high_availability/nfs.md

@@ -19,11 +19,20 @@ for steps to test filesystem performance.
 
 ## Known kernel version incompatibilities
 
-The following kernel versions should NOT be used with GitLab:
-
-|Distribution |Kernel Versions|Affected GitLab versions|Details|
-|-------------|---------------|------------------------|-------|
-|RHEL/CentOS|`3.10.0-1127*`|All prior to GitLab 13.1|[Uploads fail to copy over NFS](https://gitlab.com/gitlab-org/gitlab/-/issues/218999)|
+RedHat Enterprise Linux (RHEL) and CentOS v7.7 and v7.8 ship with kernel
+version `3.10.0-1127`, which [contains a
+bug](https://bugzilla.redhat.com/show_bug.cgi?id=1783554) that causes
+[uploads to fail to copy over NFS](https://gitlab.com/gitlab-org/gitlab/-/issues/218999). The
+following GitLab versions include a fix to work properly with that
+kernel version:
+
+1. [12.10.12](https://about.gitlab.com/releases/2020/06/25/gitlab-12-10-12-released/)
+1. [13.0.7](https://about.gitlab.com/releases/2020/06/25/gitlab-13-0-7-released/)
+1. [13.1.1](https://about.gitlab.com/releases/2020/06/24/gitlab-13-1-1-released/)
+1. 13.2 and up
+
+If you are using that kernel version, be sure to upgrade GitLab to avoid
+errors.
 
 ## NFS Server features