Update deploy button with green Shields.io badge

Author: pppop00

README.md

@@ -29,7 +29,7 @@
 **Deploy to your AWS account in minutes — no local setup required.**
 
 <a href="https://console.aws.amazon.com/cloudformation/home?#/stacks/new?stackName=vm-data-wheel&templateURL=https://raw.githubusercontent.com/Video-Reason/VMDataWheel/main/cloudformation/VmDatasetPipelineStack.template.json">
-  <img src="https://s3.amazonaws.com/cloudformation-examples/cloudformation-launch-stack.png" alt="Launch Stack" height="40" />
+  <img src="https://img.shields.io/badge/🚀_DEPLOY_NOW-00C853?style=for-the-badge" alt="Deploy Now" />
 </a>
 
 > **Stack name must be lowercase** (e.g., `vm-data-wheel`)