Merge pull request #193 from rescript-lang/datatransferlist

Rename DataTransferItemList.add2 to DataTransferItemList.addFile

Author: nojaf

src/UIEventsAPI/DataTransferItemList.res

@@ -13,7 +13,7 @@ Adds a new entry for the given data to the drag data store. If the data is plain
 [Read more on MDN](https://developer.mozilla.org/docs/Web/API/DataTransferItemList/add)
 */
 @send
-external add2: (dataTransferItemList, file) => dataTransferItem = "add"
+external addFile: (dataTransferItemList, file) => dataTransferItem = "add"
 
 /**
 Removes the indexth entry in the drag data store.