feat: updated title service & its ex

Author: Manthan Ankolekar

README.md

@@ -2008,6 +2008,11 @@ import { BrowserModule, Title } from '@angular/platform-browser';
 ```
 
 ```jsx
+import { BrowserModule, Title } from '@angular/platform-browser';
+import { NgModule } from '@angular/core';
+import { AppRoutingModule } from './app-routing.module';
+import { AppComponent } from './app.component';
+
 @NgModule({
   declarations: [
     AppComponent