fix: fix broken stub example link in VTL docs

Author: Ayase-252

docs/vue-testing-library/faq.md

@@ -90,6 +90,6 @@ Links:
 [vue-test-utils]: https://github.com/vuejs/vue-test-utils
 [mount]: https://vue-test-utils.vuejs.org/api/#mount
 [stubs]: https://vue-test-utils.vuejs.org/api/options.html#stubs
-[stubs-example]: https://github.com/testing-library/vue-testing-library/blob/master/tests/__tests__/stubs.js
+[stubs-example]: https://github.com/testing-library/vue-testing-library/blob/master/src/__tests__/stubs.js
 
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