Update README.md

fix #430

Author: troolee

doc/README.md

@@ -70,7 +70,7 @@ gridstack.js API
  - `'auto'` - height will be calculated from cell width.
 - `disableDrag` - disallows dragging of widgets (default: `false`).
 - `disableResize` - disallows resizing of widgets (default: `false`).
-- `draggable` - allows to override jQuery UI draggable options. (default: `{handle: '.grid-stack-item-content', scroll: true, appendTo: 'body'}`)
+- `draggable` - allows to override jQuery UI draggable options. (default: `{handle: '.grid-stack-item-content', scroll: false, appendTo: 'body'}`)
 - `handle` - draggable handle selector (default: `'.grid-stack-item-content'`)
 - `handleClass` - draggable handle class (e.g. `'grid-stack-item-content'`). If set `handle` is ignored (default: `null`)
 - `height` - maximum rows amount. Default is `0` which means no maximum rows