chore(igxFor): Fix typo in igxForTotalItemCount input

Author: dkamburov

CHANGELOG.md

@@ -126,9 +126,9 @@ All notable changes for each version of this project will be documented in this
     ```
 
 - `IgxForOf`
-    - `IgxForOfTotalItemCount` input is added for the cases when the data is from remote services. This will allow setting the count of the items through the template. And gives the opportunity for the developers to use AsyncPipe for this option:
+    - `IgxForTotalItemCount` input is added for the cases when the data is from remote services. This will allow setting the count of the items through the template. And gives the opportunity for the developers to use AsyncPipe for this option:
     ```html
-    <ng-template igxFor let-item [igxForOf]="data | async" [igxForOfTotalItemCount]="count | async"
+    <ng-template igxFor let-item [igxForOf]="data | async" [igxForTotalItemCount]="count | async"
         [igxForContainerSize]="'500px'" [igxForItemSize]="'50px'"></ng-template>
     ```
 

projects/igniteui-angular/src/lib/directives/for-of/for_of.directive.spec.ts

@@ -1076,7 +1076,7 @@ describe('IgxForOf directive -', () => {
         });
     });
 
-    describe('remote virtual component with specified igxForOfTotalItemCount', () => {
+    describe('remote virtual component with specified igxForTotalItemCount', () => {
         configureTestSuite();
         let fix: ComponentFixture<RemoteVirtCountComponent>;
 

projects/igniteui-angular/src/lib/directives/for-of/for_of.directive.ts

@@ -145,7 +145,7 @@ export class IgxForOfDirective<T> implements OnInit, OnChanges, DoCheck, OnDestr
      * The total count of the virtual data items, when using remote service.
      * Similar to the property totalItemCount, but this will allow setting the data count into the template.
      * ```html
-     * <ng-template igxFor let-item [igxForOf]="data | async" [igxForOfTotalItemCount]="count | async"
+     * <ng-template igxFor let-item [igxForOf]="data | async" [igxForTotalItemCount]="count | async"
      *  [igxForContainerSize]="'500px'" [igxForItemSize]="'50px'"></ng-template>
      * ```
      */