Update geistdocs.tsx

Author: haydenbleasel

apps/website/geistdocs.tsx

@@ -10,19 +10,15 @@ export const Logo = () => (
 );
 
 export const github = {
-  owner: undefined as string | undefined,
-  repo: undefined as string | undefined,
+  owner: "vercel",
+  repo: "streamdown",
 };
 
 export const nav = [
   {
     label: "Docs",
     href: "/docs",
   },
-  {
-    label: "Source",
-    href: "https://github.com/vercel/streamdown",
-  },
   {
     label: "AI Elements",
     href: "https://ai-sdk.dev/elements",