Merge pull request plotly#938 from marekpiotrowski/improvement/upload-documentation-update

Added unit for Upload's max_size documentation.

Author: alexcjohnson

packages/dash-core-components/src/components/Upload.react.js

@@ -100,12 +100,12 @@ Upload.propTypes = {
     disable_click: PropTypes.bool,
 
     /**
-     * Maximum file size. If `-1`, then infinite
+     * Maximum file size in bytes. If `-1`, then infinite
      */
     max_size: PropTypes.number,
 
     /**
-     * Minimum file size
+     * Minimum file size in bytes
      */
     min_size: PropTypes.number,