UI: update help link

ui-ngx/src/app/modules/home/components/widget/lib/home-page/getting-started-widget.component.html

@@ -33,7 +33,7 @@
             </div>
           </ng-template>
           <div [innerHTML]="'widgets.getting-started.sys-admin.step1.content' | translate | safe: 'html'"></div>
-          <a mat-stroked-button color="primary" href="https://thingsboard.io/docs/user-guide/ui/tenants/#adding-a-tenant" target="_blank">
+          <a mat-stroked-button color="primary" href="https://thingsboard.io/docs/user-guide/ui/tenants/" target="_blank">
             <mat-icon>description</mat-icon>{{ 'widgets.getting-started.sys-admin.step1.how-to-create-tenant' | translate }}</a>
         </mat-step>
         <mat-step [completed]="gettingStarted.maxSelectedIndex > 0">