Small examples fixes

Author: persidskiy

Apps/Examples/Examples/All Examples/Annotations/CircleAnnotationExample.swift

@@ -63,7 +63,7 @@ final class CircleAnnotationExample: UIViewController, ExampleProtocol {
             }
             annotation.dragEndHandler = { annotation, _ in
                 annotation.circleRadius = 12
-                annotation.circleStrokeWidth = 0
+                annotation.circleStrokeWidth = 4
                 print("annotation drag ended: \(annotation.id)")
             }
             annotations.append(annotation)

Apps/Examples/Examples/All Examples/Annotations/PointAnnotationClusteringExample.swift

@@ -27,11 +27,10 @@ final class PointAnnotationClusteringExample: UIViewController, ExampleProtocol
     func addPointAnnotations() {
         // The image named `fire-station-11` is included in the app's Assets.xcassets bundle.
         let image = UIImage(named: "fire-station-11")!
-        // Fire_Hydrants.geojson contains information about fire hydrants in Washington, D.C.
-        // It was downloaded on 6/10/21 from https://opendata.dc.gov/datasets/DCGIS::fire-hydrants/about
-        // Decode the GeoJSON into a feature collection on a background thread
-        _ = Bundle.main.url(forResource: "Fire_Hydrants", withExtension: "geojson")!
         DispatchQueue.global(qos: .userInitiated).async {
+            // Fire_Hydrants.geojson contains information about fire hydrants in Washington, D.C.
+            // It was downloaded on 6/10/21 from https://opendata.dc.gov/datasets/DCGIS::fire-hydrants/about
+            // Decode the GeoJSON into a feature collection on a background thread
             guard let featureCollection = try? self.decodeGeoJSON(from: "Fire_Hydrants") else {
                 return
             }