Update README.md

Author: j05u3

README.md

@@ -34,5 +34,37 @@ echo json_encode($b->getAllElementsInCircle(new Point(0,0)));
 And the output is: 
 
 ```json
-{"100":{"id":100,"p1":{"id":0,"x":-1.5,"y":-1},"p2":{"id":0,"x":-0.5,"y":-0.5}},"200":{"id":200,"p1":{"id":0,"x":1.25,"y":1.5},"p2":{"id":0,"x":0.5,"y":0.75}},"400":{"id":400,"x":0.5,"y":0.5}}
+{
+  "100": {
+    "id": 100,
+    "p1": {
+      "id": 0,
+      "x": -1.5,
+      "y": -1
+    },
+    "p2": {
+      "id": 0,
+      "x": -0.5,
+      "y": -0.5
+    }
+  },
+  "200": {
+    "id": 200,
+    "p1": {
+      "id": 0,
+      "x": 1.25,
+      "y": 1.5
+    },
+    "p2": {
+      "id": 0,
+      "x": 0.5,
+      "y": 0.75
+    }
+  },
+  "400": {
+    "id": 400,
+    "x": 0.5,
+    "y": 0.5
+  }
+}
 ```