Link out to the excellent testifylint

README.md

@@ -18,10 +18,9 @@ Get started:
   * Install testify with [one line of code](#installation), or [update it with another](#staying-up-to-date)
   * For an introduction to writing test code in Go, see https://go.dev/doc/code#Testing
   * Check out the API Documentation https://pkg.go.dev/github.com/stretchr/testify
+  * Use [testifylint](https://github.com/Antonboom/testifylint) to avoid common mistakes
   * A little about [Test-Driven Development (TDD)](https://en.wikipedia.org/wiki/Test-driven_development)
 
-
-
 [`assert`](https://pkg.go.dev/github.com/stretchr/testify/assert "API documentation") package
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