chore(*): fix formatting sample

Author: hanastasov

src/app/grid-formatting/grid-formatting.component.html

@@ -23,7 +23,7 @@ <h3>Grid with local data</h3>
     </igx-column>
     <igx-column width="200px" field="OrderDate" header="Unbound column" [filterable]="true" [hasSummary]="true" [sortable]="true">
         <ng-template igxCell let-cell="cell" let-val>
-            {{ cell.rowData.UnitsInStock }}
+            {{ getVal(cell) }}
         </ng-template>
     </igx-column>
     <igx-column field="ReorderLevel" width="200px" [sortable]="true" [filterable]="true" [dataType]="'number'" [hasSummary]="false">