Update README.md

Author: fey

README.md

@@ -8,3 +8,11 @@ Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
 
 Builds the app for production to the `build` folder.\
 It correctly bundles React in production mode and optimizes the build for the best performance.
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+---
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+[![Hexlet Ltd. logo](https://raw.githubusercontent.com/Hexlet/assets/master/images/hexlet_logo128.png)](https://hexlet.io/?utm_source=github&utm_medium=referral&utm_campaign=hexlet&utm_content=hexlet-basics)
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+This repository is created and maintained by the team and the community of Hexlet, an educational project. [Read more about Hexlet](https://hexlet.io/?utm_source=github&utm_medium=referral&utm_campaign=hexlet&utm_content=hexlet-basics).
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+See most active contributors on [hexlet-friends](https://friends.hexlet.io/).