Update chat-call.mdx

Author: Kiro Agent

chat-call.mdx

@@ -18,7 +18,7 @@ canonical: "https://cometchat.com/docs"
       <p className="text-lg text-gray-600">
         Add real-time chat and calls to your app in minutes. Choose the approach that fits your needs.
       </p>
-      <p className="text-sm text-gray-500 dark:text-gray-400 mt-4">Add a skill and start building instantly.</p>
+      <p className="text-sm text-gray-500 dark:text-gray-400 mt-4 mb-0">Add a skill and start building instantly.</p>
 
 ```bash
 npx @cometchat/skills add