pages/tables/simple.html: add `colspan`
pages/tables/simple.html: add `colspan`

garrettwong/AdminLTE,oyjt/AdminLTE,almasaeed2010/AdminLTE,oyjt/AdminLTE,almasaeed2010/AdminLTE,oyjt/AdminLTE,garrettwong/AdminLTE,slachiewicz/AdminLTE,slachiewicz/AdminLTE