add to Angular extensible table document.

docs/en/UI/Angular/Extensions-Overall.md

@@ -8,3 +8,34 @@ See the documents below for the details:
 * [Data Table Column (or Entity Prop) Extensions](Data-Table-Column-Extensions.md)
 * [Page Toolbar Extension](Page-Toolbar-Extensions.md)
 * [Dynamic Form (or Form Prop) Extensions](Dynamic-Form-Extensions.md)
+
+##  Extensible Table Component
+
+Using [ngx-datatable](https://github.com/swimlane/ngx-datatable) in extensinble table.
+
+````ts
+      <abp-extensible-table
+    actionsText="Your Action"
+    [data]="items"
+    [recordsTotal]="totalCount"
+    [actionsColumnWidth]="38"
+    [actionsTemplate]="customAction"
+    [list]="list"
+    (tableActivate)="onTableSelect($event)"
+    ></abp-extensible-table>
+````
+
+`       actionsText : ` ** Column name of action column.
+
+`              data : ` Items shows in your table. 
+
+`              list : ` Template of your table. 
+
+`actionsColumnWidth : ` Width of your action column. 
+
+`   actionsTemplate : ` Template of action when click this button or whatever. Generally ng-template.
+
+`      recordsTotal : ` Count of record total. 
+
+`    tableActivate  : ` It is Output(). A cell or row was focused via keyboard or mouse click.
+A cell or row was focused via keyboard or mouse click.