[CONFIG] README badges updated.

Author: Gonzalo Diaz

README.md

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 ![GitHub language count](https://img.shields.io/github/languages/count/sir-gon/algorithm-exercises-csharp)
 ![GitHub top language](https://img.shields.io/github/languages/top/sir-gon/algorithm-exercises-csharp)
 
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 ## What is this?
 
 [Project Euler](https://algorithm-exercises.net/) provide some algorithms and