fix: revert couple of changes

Author: mouraddmeiri

content/nap-waf/v4/admin-guide/install.md

@@ -32,8 +32,8 @@ NGINX App Protect WAF supports the following operating systems:
 - [Debian 11 (Bullseye) & 12 (Bookworm)](#debian-10--debian-11--debian-12-installation)
 - [Oracle Linux 8.1.x and above](#oracle-linux-81-installation)
 - [RHEL 8.1.x and above](#rhel-81-installation)
-- [RHEL 9 and above](#rhel-9-installation)
-- [Ubuntu 20.04 (Focal), 22.04 (Jammy) & 24.04 (Noble)](#ubuntu-installation)
+- [RHEL 9, Rocky Linux 9 and above](#rhel-9-installation)
+- [Ubuntu 22.04 (Jammy) & 24.04 (Noble)](#ubuntu-installation)
 
 The NGINX App Protect WAF package has the following dependencies: