Mention Hive in the documentation of the diff command (#2837)

Author: kamilkisiela

website/src/pages/docs/commands/diff.mdx

@@ -13,6 +13,14 @@ Detect changes to your GraphQL Schema and prevent breaking your existing applica
 Inspector you get a list of breaking, potentially dangerous and safe changes on every Pull Request.
 Integrate it with GitHub, BitBucket, GitLab or any Continuous Integration.
 
+> While GraphQL Inspector is effective for comparing two schema versions and identifying changes,
+> for a more comprehensive and robust approach to schema management, consider using
+> [GraphQL Hive](https://the-guild.dev/graphql/hive). GraphQL Hive offers a fully open-source schema
+> registry for GraphQL APIs. It provides features such as version control and schema checks to
+> detect breaking changes before they reach production, allowing you to evolve your API with
+> confidence. . Additionally, GraphQL Hive offers insights into API usage and performance metrics,
+> making it a more robust solution for managing and evolving your GraphQL schemas.
+
 ![Application](/assets/img/github/app-action.jpg)
 
 ## You can choose between: