chore(docs): update plugin descriptions (#19)

* Updating the plugin description to match README.

* Update plugin marketplace descriptions.

Author: justintlewis

.claude-plugin/marketplace.json

@@ -1,6 +1,6 @@
 {
   "metadata": {
-    "description": "Official AWS plugins for Claude Code, Cursor, and AI coding assistants.",
+    "description": "Agent Plugins for AWS equip AI coding agents with the skills to help you architect, deploy, and operate on AWS.",
     "version": "1.0.0"
   },
   "name": "awslabs-agent-plugins",
@@ -11,7 +11,7 @@
   "plugins": [
     {
       "category": "deployment",
-      "description": "Deploy any application to AWS. Get architecture recommendations, cost estimates, and one-command deployment.",
+      "description": "Deploy applications to AWS with architecture recommendations, cost estimates, and IaC deployment.",
       "keywords": [
         "aws",
         "aws agent skills",

plugins/deploy-on-aws/.claude-plugin/plugin.json

@@ -2,7 +2,7 @@
   "author": {
     "name": "Amazon Web Services"
   },
-  "description": "Deploy any application to AWS. Get architecture recommendations, cost estimates, and one-command deployment.",
+  "description": "Deploy applications to AWS with architecture recommendations, cost estimates, and IaC deployment.",
   "homepage": "https://github.com/awslabs/agent-plugins",
   "keywords": [
     "aws",