docs(readme): document 'handle' param

Author: STRML

README.md

@@ -50,6 +50,8 @@ These props apply to both `<Resizable>` and `<ResizableBox>`.
   children: React.Element<any>,
   width: number,
   height: number,
+  // Either a ReactElement to be used as handle, or a function returning an element that is fed the handle's location as its first argument.
+  handle: ReactElement<any> | (resizeHandle: 's' | 'w' | 'e' | 'n' | 'sw' | 'nw' | 'se' | 'ne') => ReactElement<any>,
   // If you change this, be sure to update your css
   handleSize: [number, number] = [10, 10],
   lockAspectRatio: boolean = false,

test/TestLayout.js

@@ -12,7 +12,6 @@ export default class TestLayout extends React.Component<{}, {width: number, heig
   };
 
   onResize = (event, {element, size, handle}) => {
-    console.log(handle);
     this.setState({width: size.width, height: size.height});
   };