Update README.md

Author: erickcm2k

README.md

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   Course given at my school, ESCOM IPN. By [ÓscarRH](https://github.com/SoyOscarRH).
 
+- **[React Testing with Jest and Enzyme](https://www.udemy.com/course/react-testing-with-jest-and-enzyme/)**
 
+  Udemy course by Bonnie Schulkin
 
    ## Some projects I've made using this knowledge