fix: correct Quick Start step 3 to use cvms get

Co-Authored-By: Claude <[email protected]>

Author: h4x3rotab

phala-cloud/references/phala-cloud-cli/phala/overview.mdx

@@ -32,8 +32,8 @@ phala login
 # 2. Deploy your application
 phala deploy
 
-# 3. Check deployment status
-phala status
+# 3. Check your CVM
+phala cvms get
 ```
 
 ## Command Overview