added a description of what the function does

Author: naem-less

guide/Useful/return.md

@@ -1,12 +1,14 @@
 # $return
 
-Can only be used inside user-defined functions created with $function\
+Stops a user defined function execution and returns the Return Value
+
+Can only be used inside user-defined functions created with `$function`\
 It has no effect outside the user-defined function
 
 ## Usage
 
 ```bash
-$return[Return Value]
+$return[Return Value(optional)]
 ```
 
 ### Example: