Fix link to the latest Vue Test Utils repository (#1515)

Author: 13RTK

docs/vue-testing-library/intro.mdx

@@ -6,7 +6,7 @@ sidebar_label: Introduction
 
 Vue Testing Library builds on top of `DOM Testing Library` by adding APIs for
 working with Vue components. It is built on top of
-[@vue/test-utils](https://github.com/vuejs/vue-test-utils), the official testing
+[@vue/test-utils](https://github.com/vuejs/test-utils/), the official testing
 library for Vue.
 
 - [Vue Testing Library on GitHub][gh]