message: Fix free camera example.
diff: @@ -69,6 +69,9 @@ export namespace FreeCameraAppDebuggingToolExample {
  constructor(readonly options: FreeCameraAppOptions) {
  this.mapView = new MapView(options);
  this.mapView.fog.enabled = false;
  + // Set the view over Geneva.
  + const startLocation = new GeoCoordinates(46.207, 6.147);
  + this.mapView.lookAt(startLocation, 2000);
  this.mapControls = new MapControls(this.mapView);
  this.mapControls.enabled = false;
  @@ -280,14 +283,12 @@ Press 'V' to change the scene point of view<br>`;
  document.body.appendChild(message);
  const canvas = document.getElementById("mapCanvas") as HTMLCanvasElement;
  - const geoCenter = new GeoCoordinates(52.518611, 13.376111);
  // snippet:harp_gl_freecamera_app_0.ts
  const app = new FreeCameraApp({
  decoderUrl: "./decoder.bundle.js",
  canvas,
  - theme: "./resources/berlin_tilezen_base.json",
  - geoCenter
  + theme: "./resources/berlin_tilezen_base.json"
  });
  app.start();
  