fix: close self hosting docs loop

apps/docs/introduction.mdx

@@ -25,7 +25,11 @@ Get started with Kan by choosing your preferred deployment option below.
     Get started instantly with our hosted solution - we'll handle all the
     hosting, scaling, and maintenance for you.
   </Card>
-  <Card title="Self-host" icon="code" href="https://github.com/kanbn/kan">
+  <Card
+    title="Self-host"
+    icon="code"
+    href="https://github.com/kanbn/kan?tab=readme-ov-file#self-hosting-"
+  >
     For full data ownership and control, you can self-host Kan on your
     infrastructure.
   </Card>