Improve configuration comment

gulpfile.js

@@ -1,6 +1,6 @@
 /*
-  All configurable options are defined inside build.config
+  All configurable options are defined in separate files inside the 'task/' folder
-  Please adjust this to your site's settings
+  Please adjust these files according to your personal requirements
 */
 
 /*******************************
@@ -1135,4 +1135,4 @@ gulp.task('update git', false, function() {
 
   return stepRepo();
 
-});
+});