add why sotopia

docs/pages/index.mdx

@@ -19,7 +19,7 @@ import { Tabs, TabsContent, TabsList, TabsTrigger } from "../components/ui/tabs"
 </Callout>
 
 Train, deploy, and evaluate Social AI agents
-with <span className="font-display text-xl">Sotopia</span>
+with <Link href="https://sotopia.world/"><span className="font-display text-xl">Sotopia</span></Link>
 
 ## Features
 
@@ -70,6 +70,10 @@ with <span className="font-display text-xl">Sotopia</span>
 </Accordion>
 
 
+## Why Sotopia?
+Sotopia aims at providing a flexible and easy-to-use multi-agent social interaction platform. Unlike other multi-agent frameworks ([CrewAI](https://www.crewai.com/), [CAMEL-AI](https://www.camel-ai.org/), [AutoGen](https://microsoft.github.io/autogen/dev/index.html), and [swarm](https://github.com/openai/swarm)), Sotopia focuses on simulating realistic social interaction and providing a wide range of social tasks and characters with different backgrounds and personalities.
+
+
 
 ## Installation
 This package supports Python 3.10 and above. There are two ways to setup the package: