docs(actionSheet): correct show() method example

Author: ohh2ahh

js/angular/service/actionSheet.js

@@ -22,10 +22,10 @@
  *  $scope.show = function() {
  *
  *    // Show the action sheet
- *    var hideSheet = $ionicActionSheet({
+ *    var hideSheet = $ionicActionSheet.show({
  *      buttons: [
  *        { text: '<b>Share</b> This' },
- *        { text: 'Move' },
+ *        { text: 'Move' }
  *      ],
  *      destructiveText: 'Delete',
  *      titleText: 'Modify your album',