Update learning.md

Author: kentcdodds

docs/learning.md

@@ -8,6 +8,9 @@ sidebar_label: Learning Material
   about testing JavaScript applications (See also the
   [course material with many examples using React Testing Library](https://github.com/kentcdodds/react-testing-library-course))
   by [Kent C. Dodds](https://github.com/kentcdodds)
+- [Kent C. Dodds's testing related blog post are all relevant](https://kentcdodds.com/blog?q=test)
+  (especially
+  [Common mistakes with React Testing Library](https://kentcdodds.com/blog/common-mistakes-with-react-testing-library))
 - [Migrating from Enzyme shallow rendering to explicit component mocks](https://www.youtube.com/watch?v=LHUdxkThTM0&list=PLV5CVI1eNcJgCrPH_e6d57KRUTiDZgs0u)
 - [Confident React](https://www.youtube.com/watch?v=qXRPHRgcXJ0&list=PLV5CVI1eNcJgNqzNwcs4UKrlJdhfDjshf)
 - [Test Driven Development with React Testing Library](https://www.youtube.com/watch?v=kCR3JAR7CHE&list=PLV5CVI1eNcJgCrPH_e6d57KRUTiDZgs0u)