Fix linting of markdown documentation

Author: timneutkens

docs/basic-features/data-fetching.md

@@ -192,7 +192,7 @@ export async function getStaticPaths() {
 
   // Get the paths we want to pre-render based on posts
   const paths = posts.map(post => ({
-    params: {id: post.id}
+    params: { id: post.id },
   }))
 
   // We'll pre-render only these paths at build time.