docs: Update Kernel API key link to dashboard URL

Author: beran-t

docs/use-cases/remote-browser.mdx

@@ -15,7 +15,7 @@ Kernel handles CAPTCHA solving, residential proxies, authentication, and observa
 ## Prerequisites
 
 - An [E2B API key](https://e2b.dev/dashboard?tab=keys)
-- A [Kernel API key](https://www.kernel.sh/)
+- A [Kernel API key](https://dashboard.onkernel.com/api-keys)
 - Python 3.10+ / Node.js 18+
 
 <CodeGroup>