Update README.md

Author: pedrobiqua

README.md

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 # Search Engine
+[![CMake Build and Test](https://github.com/pedrobiqua/Search_Engine/actions/workflows/cmake-multi-platform.yml/badge.svg?branch=main)](https://github.com/pedrobiqua/Search_Engine/actions/workflows/cmake-multi-platform.yml)
+
 
 [![English Version](https://img.shields.io/badge/English-Version-blue?style=for-the-badge)](#english-version)