Update src/routes/solid-start/reference/config/define-config.mdx

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: atilafassina

src/routes/solid-start/reference/config/define-config.mdx

@@ -81,7 +81,7 @@ export default defineConfig({
 - SolidStart v1 defaults to `js` for backwards compatibility.
 - SolidStart v2 defaults to `json` for CSP compatibility.
 
-Seroval defines the supported value types and edge cases. See the full list in the Seroval compatibility docs.
+Seroval defines the supported value types and edge cases. See the full list in the [Seroval compatibility docs](https://github.com/lxsmnsyc/seroval/blob/main/docs/COMPATIBILITY.md).
 
 ## Configuring Nitro