refactor: migration & readme file

Author: aman19K

MIGRATION.md

@@ -1,5 +1,5 @@
 ## Migrating from v2 to v3
-This migration document details the changes needed to separate nested modular blocks into distinct interfaces. This update will impact how modular blocks are represented and utilized throughout the codebase.
+This document outlines the necessary changes to separate nested modular blocks into distinct interfaces. This update will affect how modular blocks are structured and used throughout the codebase.
 
 ## Before 
 ```typescript

README.md

@@ -12,7 +12,7 @@ $ csdx plugins:install contentstack-cli-tsgen
 ```
 
 ## Migration
-See the v3 [Migration Guide](https://github.com/contentstack/contentstack-cli-tsgen/blob/master/MIGRATION.md) if you are migrating from v2 or older.
+Refer to the [Migration Guide](https://github.com/contentstack/contentstack-cli-tsgen/blob/master/MIGRATION.md) version 3 if you are migrating from version 2 or older.
 
 ## How to use this plugin