docs: update outdated url (page not found) (#3369)

Author: joshxfi

website/src/pages/docs/prepare-for-production.mdx

@@ -51,7 +51,7 @@ use the following plugins.
 - [Max Directives](https://escape.tech/graphql-armor/docs/plugins/max-directives)
 
 You can read more about these plugins in the
-[GraphQL Armor documentation](https://escape.tech/graphql-armor/docs/plugins).
+[GraphQL Armor documentation](https://escape.tech/graphql-armor/docs/category/plugins).
 
 <Callout>
   Depending on the type/complexity of GraphQL operations that are executed you might need to adjust