Clarified comments

ref #90

src/models/actions/create/CreateScan.ts

@@ -9,7 +9,7 @@ import { Scan } from '../../entities/Scan';
  */
 export abstract class CreateScan {
     /**
-     * The scan's associated runner.
+     * The scan's associated runner's id.
      * This is important to link ran distances to runners.
      */
     @IsInt()

src/models/actions/create/CreateScanStation.ts

@@ -19,7 +19,7 @@ export class CreateScanStation {
     description?: string;
 
     /**
-     * The station's associated track.
+     * The station's associated track's id.
      */
     @IsInt()
     @IsPositive()

src/models/actions/create/CreateTrackScan.ts

@@ -12,7 +12,7 @@ import { TrackScan } from '../../entities/TrackScan';
  */
 export class CreateTrackScan {
     /**
-     * The runnerCard associated with the scan.
+     * The id of the runnerCard associated with the scan.
      * This get's saved for documentation and management purposes.
      */
     @IsInt()
@@ -20,8 +20,8 @@ export class CreateTrackScan {
     card: number;
 
     /**
-     * The scanning station that created the scan.
+     * The scanning station's id that created the scan.
-     * Mainly used for logging and traceing back scans (or errors)
+     * Mainly used for logging and traceing back scans (or errors).
      */
     @IsInt()
     @IsPositive()