(docs) clean

Author: antoine92190

README.md

@@ -174,13 +174,10 @@ this.rooms[i].typingUsers = [...this.rooms[i].typingUsers, typingUserId]
 this.rooms[i].typingUsers.push(typingUserId)
 ```
 
-- To add or replace an item inside an array, use `$set` method or spread operator
+- To add or replace an item inside an array, use spread operator
 
 ```javascript
 // DO THIS
-this.$set(this.rooms, roomIndex, room)
-
-// OR DO THIS
 this.rooms[roomIndex] = room
 this.rooms = [...this.rooms]