Update README.md

Author: jhades

README.md

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 This repository contains the full application of the Complete Typescript Course.
 
+![Complete Typescript Course](https://angular-academy.s3.amazonaws.com/thumbnails/typescript-2-small.png)
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 # Installation pre-requisites
 
 For running this project we need and npm installed on our machine. These are some tutorials to install node in different operating systems: