Update 'src/app/components/middle-point/models/middle-point-model.js'

Add a single comment ("Extends PointModel (app/components/point-component/models/point-model.js)")

src/app/components/middle-point/models/middle-point-model.js

@@ -12,6 +12,7 @@ import { PointModel } from "../../point-component/models/point-model";
 import { IntersectionModel } from "../../intersection-component/models/intersection-model";
 import { ELEMENTS_CLASS } from "../../../core/enums/elements-class-enum";
 
+// Extends PointModel (app/components/point-component/models/point-model.js)
 export class MiddlePointModel extends PointModel {
 
   constructor (pointA, pointB, label, id) {