Update README.md

Author: jhades

README.md

@@ -1,3 +1,5 @@
 # Angular HTTP Quickstart Guide
 
-This repository is the support code for the [Angular HTTP QuickStart](http://blog.angular-university.io/angular-http) blog post.
+This repository contains a sample Angular HTTP application that uses the latest Angular HTTP Client, originally released together in Angular 4.3 on the import barrel `@angular/common/http`.
+
+This is the support code for the [Angular HTTP QuickStart](http://blog.angular-university.io/angular-http) blog post.