docs(material/datepicker): use two-way data-binding (#23707)

Androbin · web-flow · commit 8aef0b0c1559 · 2021-12-07T14:13:35.000Z
diff --git a/src/components-examples/material/datepicker/datepicker-inline-calendar/datepicker-inline-calendar-example.html b/src/components-examples/material/datepicker/datepicker-inline-calendar/datepicker-inline-calendar-example.html
@@ -1,4 +1,4 @@
 <mat-card class="demo-inline-calendar-card">
-  <mat-calendar (selectedChange)="selected = $event"></mat-calendar>
+  <mat-calendar [(selected)]="selected"></mat-calendar>
 </mat-card>
 <p>Selected date: {{selected}}</p>
