(chore): update readme with installation instructions
(chore): update readme with installation instructions

swimlane/angular2-data-table,janssonav/ngx-datatable,janssonav/ngx-datatable,swimlane/angular2-data-table,swimlane/ngx-datatable,achimha/ngx-datatable,achimha/ngx-datatable,janssonav/ngx-datatable,swimlane/ngx-datatable,stupiduglyfool/ngx-datatable,swimlane/ngx-datatable,stupiduglyfool/ngx-datatable,stupiduglyfool/ngx-datatable,achimha/ngx-datatable,swimlane/angular2-data-table