docs: Add Stackblitz examples for component communication in README.md

Author: manthanank

README.md

@@ -1458,6 +1458,8 @@ export class AppComponent {
 <p>Your name is: {{name}}</p>
 ```
 
+[Stackblitz Example](https://stackblitz.com/edit/stackblitz-starters-s43hdu?file=src%2Fmain.ts)
+
 **change event** - The `change` event is emitted when the value of an input element changes. It can be used to perform additional logic when the value changes.
 
 Example :
@@ -1485,6 +1487,8 @@ export class AppComponent {
 <p>Your name is: {{name}}</p>
 ```
 
+[Stackblitz Example](https://stackblitz.com/edit/stackblitz-starters-s43hdu?file=src%2Fmain.ts)
+
 [Back to top⤴️](#table-of-contents)
 
 ## Directives