added throttle

Author: manthanank

README.md

@@ -2758,10 +2758,34 @@ export class App implements OnInit {
 bootstrapApplication(App);
 ```
 
-**throttle** -
+**throttle** - Emits a value from the source Observable, then ignores subsequent source values for a duration determined by another Observable, then repeats this process.
 
 ```typescript
+import 'zone.js/dist/zone';
+import { Component, OnInit } from '@angular/core';
+import { CommonModule } from '@angular/common';
+import { bootstrapApplication } from '@angular/platform-browser';
+import { fromEvent, throttle, interval } from 'rxjs';
 
+@Component({
+  selector: 'my-app',
+  standalone: true,
+  imports: [CommonModule],
+  template: `
+    <h1>throttle Example</h1>
+  `,
+})
+export class App implements OnInit {
+
+  ngOnInit() {
+    const clicks = fromEvent(document, 'click');
+    const result = clicks.pipe(throttle(() => interval(1000)));
+
+    result.subscribe(x => console.log(x));
+  }
+}
+
+bootstrapApplication(App);
 ```
 
 **throttleTime** -