Updated readme

Author: cferdinandi

README.md

@@ -233,22 +233,24 @@ Useful if you have anchor links scattered throughout a page, or if you're using
 ```js
 ;(function (window, document, undefined) {
 
-    'use strict';
+	'use strict';
 
-    // Cut the mustard
+	// Cut the mustard
 	var supports = 'querySelector' in document && 'addEventListener' in window;
-    if ( !supports ) return;
+	if ( !supports ) return;
 
-    // Get all anchors
-    var anchors = document.querySelectorAll( '[href*="#"]' );
+	// Get all anchors
+	var anchors = document.querySelectorAll( '[href*="#"]' );
 
 	// Add smooth scroll to all anchors
 	for ( var i = 0, len = anchors.length; i < len; i++ ) {
+		var url = new RegExp( window.location.hostname + window.location.pathname );
+		if ( !url.test( anchors[i].href ) ) continue;
 		anchors[i].setAttribute( 'data-scroll', true );
 	}
 
 	// Initial smooth scroll (add your attributes as desired)
-    smoothScroll.init();
+	smoothScroll.init();
 
 })(window, document);
 ```