fix: Docs Broken link validateSchema (#3678)

Co-authored-by: Jared Palmer <jared@jaredpalmer.com>

docs/api/fieldarray.md

@@ -110,7 +110,7 @@ You can also iterate through an array of objects, by following a convention of `
 
 Validation can be tricky with `<FieldArray>`.
 
-If you use [`validationSchema`](./formik.md#validationschema-schema-schema) and your form has array validation requirements (like a min length) as well as nested array field requirements, displaying errors can be tricky. Formik/Yup will show validation errors inside out. For example,
+If you use [`validationSchema`](./guides/validation.md#validationschema) and your form has array validation requirements (like a min length) as well as nested array field requirements, displaying errors can be tricky. Formik/Yup will show validation errors inside out. For example,
 
 ```js
 const schema = Yup.object().shape({