docs: Fixed links in Guide Guide docs

Author: imp-dance

docs/docs/Quick Guide/index.md

@@ -6,7 +6,7 @@ sidebar_position: 4
 
 `rtk-query-loader` is a tool that you can use to clean up your codebase and prevent duplicate code. The following guide will walk you through some of our recommended best practises for making the most out of this package.
 
-1. [Create a base loader](./base-loader.md)
-2. [Extend the base loader](./extend-loader.md)
-3. [Add queries](./add-queries.md)
-4. [Consume the loader](./consume-loader.md)
+1. [Create a base loader](./base-loader)
+2. [Extend the base loader](./extend-loader)
+3. [Add queries](./add-queries)
+4. [Consume the loader](./consume-loader)