Update README.md

Author: ValchanOficial

README.md

@@ -146,6 +146,7 @@ Useful articles and learning resources.
 - [Create React App](https://github.com/facebook/create-react-app) - Create React apps with no build configurations.
 - [Swagger](https://swagger.io/) - Design and document APIs compatible with OpenAPI specification.
 - [StackEdit](https://stackedit.io/) - In-browser Markdown editor
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