Added resources for README and updated example project

Author: EgorSobko

Example/ContextMenu/ViewController.m

@@ -78,6 +78,9 @@ - (IBAction)presentMenuButtonTapped:(UIBarButtonItem *)sender {
         self.contextMenuTableView.animationDuration = 0.15;
         //optional - implement custom YALContextMenuTableView custom protocol
         self.contextMenuTableView.yalDelegate = self;
+        //optional - implement menu items layout
+        self.contextMenuTableView.menuItemsSide = Left;
+        self.contextMenuTableView.menuItemsAppearanceDirection = FromBottomToTop;
 
         //register nib
         UINib *cellNib = [UINib nibWithNibName:@"ContextMenuCell" bundle:nil];