Second part of the action comment refactoring

ref #39

src/models/actions/CreateTrack.ts

@@ -1,23 +1,26 @@
 import { IsInt, IsNotEmpty, IsPositive, IsString } from 'class-validator';
 import { Track } from '../entities/Track';
 
+/**
+ * This classed is used to create a new Track entity from a json body (post request).
+ */
 export class CreateTrack {
     /**
-     * The track's name.
+     * The new track's name.
      */
     @IsString()
     @IsNotEmpty()
     name: string;
 
     /**
-     * The track's distance in meters (must be greater than 0).
+     * The new track's distance in meters (must be greater than 0).
      */
     @IsInt()
     @IsPositive()
     distance: number;
 
     /**
-     * Converts a Track object based on this.
+     * Creates a new Track entity from this.
      */
     public toTrack(): Track {
         let newTrack: Track = new Track();