chore: update README

README.MD

@@ -10,6 +10,39 @@ To install this library, run:
 $ npm install ngx-httpclient-busy --save
 ```
 
+and then from your Angular `AppModule`:
+
+```typescript
+import { BrowserModule } from '@angular/platform-browser';
+import { NgModule } from '@angular/core';
+import { HTTP_INTERCEPTORS, HttpClientModule } from '@angular/common/http';
+import { AppComponent } from './app.component';
+
+import { CounterService, HttpClientBusyInterceptor, HttpClientBusyModule } from 'ngx-httpclient-busy';
+
+@NgModule({
+  declarations: [
+    AppComponent
+  ],
+  imports: [
+    BrowserModule,
+    HttpClientBusyModule.forRoot()
+  ],
+  providers: [
+    CounterService,
+    { provide: HTTP_INTERCEPTORS, useClass: HttpClientBusyInterceptor, multi: true }
+  ],
+  bootstrap: [AppComponent]
+})
+export class AppModule { }
+```
+
+Simple Working Gear [FontAwesome](http://fontawesome.io/) Icon
+
+```xml
+<i aria-hidden="true" class="fa fa-cog fa-fw fa-2x fa-spin text-muted loading-spinner fade" httpClientBusy></i>
+```
+
 ## License
 
 MIT © [Oliver Sahner](mailto:[email protected])

playground/index.ts

@@ -15,17 +15,18 @@ import { CounterService, HttpClientBusyInterceptor, HttpClientBusyModule } from
 
 @Component({
   selector: 'app',
-  template: `Icon 
-    <i aria-hidden="true" class="fa fa-cog fa-fw fa-2x fa-spin text-muted loading-spinner fade" httpClientBusy></i>
-    <br>
-    <div class="alert alert-info transition" role="alert" httpClientBusy>
-      httpClientBusy
-    </div>
-    <div class="alert alert-success transition" role="alert" [httpClientBusy]="{idle: 'alert-success', busy: 'alert-info'}">
-      httpClientBusy Config  <code>idle: 'alert-success', busy: 'alert-info'</code>
-    </div>
-    <hr>
-    <button class="btn btn-outline-primary" (click)="ping()">Ping</button>
+  template: `Icon
+  <i aria-hidden="true" class="fa fa-cog fa-fw fa-2x fa-spin text-muted loading-spinner fade" httpClientBusy></i>
+  <br>
+  <div class="alert alert-info transition" role="alert" httpClientBusy>
+    httpClientBusy
+  </div>
+  <div class="alert alert-success transition" role="alert"
+    [httpClientBusy]="{idle: 'alert-success', busy: 'alert-info'}">
+    httpClientBusy Config <code>idle: 'alert-success', busy: 'alert-info'</code>
+  </div>
+  <hr>
+  <button class="btn btn-outline-primary" (click)="ping()">Ping</button>
   `
 })
 class AppComponent implements OnInit {