Update README.md

Author: wambugucoder

README.md

@@ -2,7 +2,7 @@
 
 This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 6.0.3.
 
-## Development server
+## Development server.
 
 Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The app will automatically reload if you change any of the source files.