Update docs/apis/subsystems/muc/index.md

Co-authored-by: Sara Arjona <[email protected]>

docs/apis/subsystems/muc/index.md

@@ -11,7 +11,7 @@ There is also a [Cache API - Quick reference](https://docs.moodle.org/dev/Cache_
 
 ## Basic usage
 
-It's very easy to get started with the Cache API. It is designed to be as easy and as quick to use as possible and is predominantely self contained.
+Getting started with the Cache API is exceptionally straightforward. It's designed for quick and easy usage, emphasizing self-containment.
 All you need to do is add a definition for your cache and you are ready to start working with the Cache API.
 
 ### Creating a definition