fix(migration-to-aws): Update plugin path in development instructions

Fix plugin naming inconsistency in README.md development section.

Changed: claude --plugin-dir ./plugins/gcp-to-aws
To: claude --plugin-dir ./plugins/migration-to-aws

This aligns with the plugin directory rename from gcp-to-aws to migration-to-aws,
ensuring development instructions reflect the current directory structure.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

Author: icarthick

plugins/migration-to-aws/README.md

@@ -57,7 +57,7 @@ The plugin uses state files (`.migration/[MMDD-HHMM]/`) to track migration progr
 To test locally:
 
 ```bash
-claude --plugin-dir ./plugins/gcp-to-aws
+claude --plugin-dir ./plugins/migration-to-aws
 ```
 
 ## License