Merge pull request #10296 from gauravsitlani/cpu-reqs

docs: Added CPU requirements

Documentation/Getting-Started/Prerequisites/prerequisites.md

@@ -9,6 +9,10 @@ and Rook is granted the required privileges (see below for more information).
 
 Kubernetes **v1.17** or higher is supported for the Ceph operator.
 
+## CPU Architecture  
+
+Architectures released are `amd64 / x86_64` and `arm64`.  
+
 ## Ceph Prerequisites
 
 In order to configure the Ceph storage cluster, at least one of these local storage options are required:

Documentation/Getting-Started/quickstart.md

@@ -15,6 +15,10 @@ from other pods running in your cluster.
 
 Kubernetes **v1.17** or higher is supported by Rook.
 
+## CPU Architecture  
+
+Architectures released are `amd64 / x86_64` and `arm64`.  
+
 ## Prerequisites
 
 To make sure you have a Kubernetes cluster that is ready for `Rook`, you can [follow these instructions](Prerequisites/prerequisites.md).