fix vercel link

Author: juecd

integrations/overview.mdx

@@ -23,7 +23,7 @@ Kernel provides detailed guides for popular agent frameworks:
 - **[Computer Use (OpenAI)](/integrations/computer-use/openai)** - OpenAI's computer use capability
 - **[Magnitude](/integrations/magnitude)** - AI-powered web automation
 - **[Val Town](/integrations/valtown)** - Serverless function runtime
-- **[Vercel](/integrations/vercel)** - Deploy browser automations to Vercel
+- **[Vercel](https://github.com/onkernel/vercel-template)** - Deploy browser automations to Vercel
 
 ## Custom Integrations