Apply suggestions from style review

Co-authored-by: Brian Angelica <[email protected]>

Author: aneta-petrova

guides/common/modules/ref_operating-system-requirements.adoc

@@ -28,7 +28,7 @@ endif::[]
 ifdef::satellite[]
 You can install the operating system from a disc, local ISO image, Kickstart, or any other method that Red{nbsp}Hat supports.
 
-Red{nbsp}Hat {ProductName} is supported on the latest version of {RHEL} 9 that is available at the time when {ProductName} is installed.
+Red{nbsp}Hat {ProductName} is supported on the latest version of {RHEL} 9 available at the time of installation.
 Previous versions of {RHEL} including EUS or z-stream are not supported.
 
 Red{nbsp}Hat {ProductName} requires a {RHEL} installation with the `@Base` package group with no other package-set modifications, and without third-party configurations or software not directly necessary for the direct operation of the server.

guides/common/modules/ref_system-requirements-quickstart.adoc

@@ -27,7 +27,8 @@ endif::[]
 
 The installation requires {project-minimum-memory} of memory.
 
-This guide assumes that you have a newly installed operating system, on which the installer will setup Foreman, a Puppet server, and the Smart Proxy by default.
+This guide assumes that you have a newly installed operating system.
+The installer sets up Foreman, a Puppet server, and the Smart Proxy by default.
 
 .Additional resources
 * {InstallingServerDocURL}operating-system-requirements[Operating system requirements in _{InstallingServerDocTitle}_]