Update readme with correct method name (bottomDockingViewForPopupBar instead of bottomDockingViewForPopup)

Author: LeoNatan

README.md

@@ -111,10 +111,10 @@ If the popup is open when dismissing the popup bar, the popup content will also
 
 ###Popup Container View Controllers
 
-Any `UIViewController` subclasses can be popup container view controllers. The popup bar is attached to a bottom docking view. By default, `UITabBarController` and `UINavigationController` subclasses return their bottom bars as docking view, while other controllers return a hidden 0pt height view on the bottom of the view. In your subclass, override `bottomDockingViewForPopup` and `defaultFrameForBottomDockingView` and return your view and frame accordingly. **The returned view must be attached to the bottom of the view controller's view, or results are undefined.**
+Any `UIViewController` subclasses can be popup container view controllers. The popup bar is attached to a bottom docking view. By default, `UITabBarController` and `UINavigationController` subclasses return their bottom bars as docking view, while other controllers return a hidden 0pt height view on the bottom of the view. In your subclass, override `bottomDockingViewForPopupBar` and `defaultFrameForBottomDockingView` and return your view and frame accordingly. **The returned view must be attached to the bottom of the view controller's view, or results are undefined.**
 
 ```objective-c
-- (nonnull UIView *)bottomDockingViewForPopup
+- (nonnull UIView *)bottomDockingViewForPopupBar
 {
 	return self.myCoolBottomView;
 }