#21 add link to new example to example/index.html
#21
add link to new example to example/index.html

bwu-dart/bwu_datagrid,bwu-dart/bwu_datagrid_examples,bwu-dart/bwu_datagrid,terrasea/bwu_datagrid,bwu-dart/bwu_datagrid,terrasea/bwu_datagrid,AlekseiPupyshev/bwu_datagrid,bwu-dart/bwu_datagrid_examples,AlekseiPupyshev/bwu_datagrid,bwu-dart/bwu_datagrid_examples,AlekseiPupyshev/bwu_datagrid,terrasea/bwu_datagrid