Typo in Docs/Usage.md

[ARGAMX]

Hello.

https://github.com/ice3-software/between-kit/blob/master/Docs/Usage.md

#import <BetweenKit/UITableView+I3Collection.h>
#import <BetweenKit/I3DragArea.h>

Gives error: 'BetweenKit/I3DragArea.h' file not found.

#import <BetweenKit/UITableView+I3Collection.h>
#import <BetweenKit/I3DragArena.h>

Work correct.