fix(integrations-reference): replace source code links with proper docs (withastro#13021)

Co-authored-by: Sarah Rainsberger <[email protected]>
Co-authored-by: Yan <[email protected]>

Author: 3 people

src/content/docs/en/reference/adapter-reference.mdx

@@ -254,7 +254,7 @@ You will need to create a file that executes during server-side requests to enab
 
 <p>
 
-**Type:** `(manifest: SSRManifest, options: any) => Record<string, any>`
+**Type:** <code>(manifest: <a href="/en/reference/integrations-reference/#ssrmanifest">SSRManifest</a>, options: any) => Record\<string, any\></code>
 </p>
 
 An exported function that takes an SSR manifest as its first argument and an object containing your adapter [`args`](#args) as its second argument. This should provide the exports required by your host.
@@ -314,7 +314,7 @@ export function createExports(manifest, args) {
 
 <p>
 
-**Type:** `(manifest: SSRManifest, options: any) => Record<string, any>`
+**Type:** <code>(manifest: <a href="/en/reference/integrations-reference/#ssrmanifest">SSRManifest</a>, options: any) => Record\<string, any\></code>
 </p>
 
 An exported function that takes an SSR manifest as its first argument and an object containing your adapter [`args`](#args) as its second argument.