PSMDB-1565 Updated system requirements (#953)

* PSMDB-1565 Updated system requirements

Removed only Dockers support for ARM
Added AWS Gravitron support

	modified:   docs/install/system-requirements.md

* Fixed typo

docs/install/system-requirements.md

@@ -1,18 +1,22 @@
 # System requirements
 
-## x86_64    
+## x86_64
 
-Percona Server for MongoDB has the same [system requirements](https://www.mongodb.com/docs/v6.0/administration/production-notes/#x86_64) as the MongoDB Community Edition.     
+Percona Server for MongoDB requires the following minimum x86_64 microarchitectures:
 
-Starting in MongoDB 5.0, `mongod`, `mongos`, and the legacy `mongo` shell are supported on x86_64 platforms that must meet these minimum micro-architecture requirements:     
+* For Intel x86_64, it requires one of the following:
 
-* Only Oracle Linux running the Red Hat Compatible Kernel (RHCK) is supported. MongoDB does not support the Unbreakable Enterprise Kernel (UEK).     
+  * a *Sandy Bridge* or later Core processor, or
+  * a *Tiger Lake* or later Celeron or Pentium processor.
 
-* MongoDB 5.0 and above requires use of the AVX instruction set, available on [select Intel and AMD processors](https://en.wikipedia.org/wiki/Advanced_Vector_Extensions#CPUs_with_AVX). 
+* For AMD x86_64, it requires a *Bulldozer* or later processor.
 
-## ARM64
+`mongod` and `mongos` instances are supported on x86_64 platforms that must meet these minimum microarchitecture requirements:     
 
-Percona Server for MongoDB requires the ARMv8.2-A or later microarchitecture. 
+* Only Oracle Linux running the Red Hat Compatible Kernel (RHCK) is supported. MongoDB does not support the Unbreakable Enterprise Kernel (UEK).     
 
-Currently, only [Docker images](https://hub.docker.com/r/percona/percona-server-mongodb/) are available.
+* MongoDB 5.0 and above require the AVX instruction set, which is available on [select Intel and AMD processors](https://en.wikipedia.org/wiki/Advanced_Vector_Extensions#CPUs_with_AVX). 
+
+## ARM64
 
+Percona Server for MongoDB requires the ARMv8.2-A or later microarchitectures. Support for ARM64 (AARch64) includes [AWS Graviton2 or newer processors](https://aws.amazon.com/ec2/graviton/).

docs/psmdb-pro.md

@@ -2,7 +2,7 @@
 
 Percona Server for MongoDB Pro is a build of Percona Server for MongoDB that contains purpose-built enterprise [features](#features). It is wrapped in packages created and tested by Percona and is available exclusively for Percona customers.
 
-Percona Server for MongpDB Pro is available starting with version [6.0.9-7](release_notes/6.0.9-7.md).
+Percona Server for MongoDB Pro is available starting with version [6.0.9-7](release_notes/6.0.9-7.md).
 
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