- update readme.md.
- Modify the assignment error of _toggleController in GroupedScrollViewWithToggle
- add new class GroupedScrollViewWithToggle, toggle separate from the GroupedScrollView.
- Supports separatorBuilder in a list
- Supports checkbox or radio in a list
- Supports normal list/grid
- Supports custom toggleStyle of selected
- update readme.md.
- more of the public API has dartdoc comments.
- initial release.