docs(ngClick): improve style

Author: Erin Altenhof-Long

src/ngTouch/directive/ngClick.js

@@ -71,7 +71,7 @@ ngTouch.directive('ngClick', ['$parse', '$timeout', '$rootElement',
   //
   // What happens when the browser then generates a click event?
   // The browser, of course, also detects the tap and fires a click after a delay. This results in
-  // tapping/clicking twice. So we do "clickbusting" to prevent it.
+  // tapping/clicking twice. We do "clickbusting" to prevent it.
   //
   // How does it work?
   // We attach global touchstart and click handlers, that run during the capture (early) phase.