Update README.md

Author: AlexanderZhukCoherent

README.md

@@ -1,5 +1,5 @@
 ##Angular Data Grid
-Light and flexible Data Grid for AngularJS apps, with built-in sorting, pagination and filtering options, unified API for client-side and server-side data fetching, 
+Light, flexible and performant Data Grid for AngularJS apps, with built-in sorting, pagination and filtering options, unified API for client-side and server-side data fetching, 
 seamless synchronization with browser address bar and total freedom in mark-up and styling suitable for your application.
 
 Demo Bootstrap: http://angular-data-grid.github.io/demo/bootstrap/
@@ -232,4 +232,4 @@ Then create in `gridOptions.customFilters` variable named as `ng-model` with fil
 ### Others
 All filters have optional parameter `disable-url`. If you set it to **true**, URL-synchronization for this filter will be disabled. 
 
-If you need to use 2 or more grids on page, please add id to grids, and then use ```grid-id``` attribute on filters to specify their corresponding grid.
+If you need to use 2 or more grids on page, please add id to grids, and then use ```grid-id``` attribute on filters to specify their corresponding grid.