Reorganize intro page cards

Author: Arya Sikder

docs/dev/introduction/overview.mdx

@@ -5,23 +5,19 @@ description: "Build real-time voice AI agents in Python."
 
 The Atoms SDK is the Python framework for building voice agents on the [Smallest AI platform](https://smallest.ai). It handles streaming audio, conversation state, and tool coordination so you can focus on your agent's logic.
 
-<Card title="Quick Start" icon="bolt" href="/dev/introduction/quickstart">
-  Build your first agent.
-</Card>
-
 ---
 
-## Learn
+## Get Started
 
 <CardGroup cols={3}>
+  <Card title="Quick Start" icon="bolt" href="/dev/introduction/quickstart">
+    Build your first agent in minutes.
+  </Card>
   <Card title="Core Concepts" icon="shapes" href="/dev/introduction/core-concepts/nodes">
     Nodes, Sessions, Events.
   </Card>
-  <Card title="CLI" icon="terminal" href="/dev/introduction/cli">
-    Dev tools.
-  </Card>
   <Card title="Examples" icon="book-open" href="/dev/cookbooks/examples">
-    Code samples.
+    Full code samples.
   </Card>
 </CardGroup>
 
@@ -45,4 +41,7 @@ The Atoms SDK is the Python framework for building voice agents on the [Smallest
   <Card title="Analytics" icon="chart-line" href="/dev/build/analytics/overview">
     Call metrics.
   </Card>
+  <Card title="CLI" icon="terminal" href="/dev/introduction/cli">
+    Dev tools.
+  </Card>
 </CardGroup>