OCP 4.19 Installation doc updates for IBM Power

Author: alishaIBM

modules/installation-minimum-resource-requirements.adoc

@@ -235,7 +235,7 @@ endif::vsphere[]
 --
 [NOTE]
 ====
-For {product-title} version 4.18, RHCOS is based on RHEL version 9.4, which updates the micro-architecture requirements. The following list contains the minimum instruction set architectures (ISA) that each architecture requires:
+For {product-title} version 4.19, RHCOS is based on RHEL version 9.6, which updates the micro-architecture requirements. The following list contains the minimum instruction set architectures (ISA) that each architecture requires:
 
 * x86-64 architecture requires x86-64-v2 ISA
 * ARM64 architecture requires ARMv8.0-A ISA

modules/installation-user-infra-machines-iso.adoc

@@ -26,7 +26,7 @@ You can use an ISO image to install {op-system} on the machines.
 .Prerequisites
 
 * You have created the Ignition config files for your cluster.
-* You have configured suitable network, DNS and load balancing infrastructure.
+* You have configured a suitable network, DNS and load balancing infrastructure.
 * You have an HTTP server that can be accessed from your computer, and from the machines that you create.
 * You have reviewed the _Advanced {op-system} installation configuration_ section for different ways to configure features, such as networking and disk partitioning.