docs: zod example

Author: logaretm

docs/src/pages/guide/composition-api/typed-schema.mdx

@@ -197,7 +197,7 @@ This makes the form values and submitted values typed automatically and caters f
 
 ```ts
 import { useForm } from 'vee-validate';
-import { object, number } from "zod";
+import { object, string } from 'zod';
 import { toTypedSchema } from '@vee-validate/zod';
 
 const { values, handleSubmit } = useForm({