Fix ups after self peer review

Changed var to let in readme example and sorted indenting on the wheel of fortune code.

Author: zarocknz

README.md

@@ -19,7 +19,7 @@ Winwheel.js Features Include:
 
 ## Example
 ```javascript
-var theWheel = new Winwheel({
+let theWheel = new Winwheel({
     'numSegments'    : 4,
     'segments'       :
     [

examples/wheel_of_fortune/index.html

@@ -122,17 +122,17 @@ <h1>Winwheel.js example wheel - wheel of fortune</h1>
                     'soundTrigger'     : 'pin'        // Specify pins are to trigger the sound, the other option is 'segment'.
                 },
                 'pins' :				// Turn pins on.
-				{
-					'number'     : 24,
-					'fillStyle'  : 'silver',
-					'outerRadius': 4,
-				}
+                {
+                    'number'     : 24,
+                    'fillStyle'  : 'silver',
+                    'outerRadius': 4,
+                }
             });
 
             // Loads the tick audio sound in to an audio object.
-			let audio = new Audio('tick.mp3');
+            let audio = new Audio('tick.mp3');
 
-			// This function is called when the sound is to be played.
+            // This function is called when the sound is to be played.
             function playSound()
             {
                 // Stop and rewind the sound if it already happens to be playing.