Clarify description for embedded Rust application

Updated the description to clarify the target processors.

Author: pareenaverma

content/learning-paths/cross-platform/rust_armds/_index.md

@@ -2,7 +2,7 @@
 title: Build an Embedded Application with Rust and Debug with Arm Development Studio
 minutes_to_complete: 60
 
-description: Learn how to build an embedded Rust application for Arm Cortex processors, run it on a Fixed Virtual Platform, and debug it using Arm Development Studio.
+description: Learn how to build an embedded Rust application for Arm processors, run it on a Fixed Virtual Platform, and debug it using Arm Development Studio.
 
 who_is_this_for: This is an introductory topic for embedded application developers to get started with Rust.