add font-awesome icon to angular code example

Example 1: font awesome install in angular

npm install --save font-awesome angular-font-awesome
//once installed you will to import font awesome to your app.module.ts
import { AngularFontAwesomeModule} from 'angular-font-awesome';
//on your app.module.ts add AngularFontAwesomeModule under imports
imorts[
.../
AngularFontAwesomeModule,
],

Example 2: how to use fa-icon in angular

import { BrowserModule } from '@angular/platform-browser';import { NgModule } from '@angular/core'; import { AppComponent } from './app.component';import { FontAwesomeModule } from '@fortawesome/angular-fontawesome'; @NgModule({  imports: [    BrowserModule,    FontAwesomeModule  ],  declarations: [AppComponent],  bootstrap: [AppComponent]})export class AppModule { }