fix: update note on joi

Author: logaretm

docs/src/pages/guide/migration.mdx

@@ -88,4 +88,16 @@ const { value, errorMessage } = useForm({ validationSchema: schema });
 
 ### Joi
 
-Joi is no longer supported in vee-validate v5, you can create a custom adapter using the `@standard-schema/spec` for it or ask their maintainers to add support for standard schema.
+vee-validate is compatible with Joi v18.0.0 and above.
+
+```ts
+import * as Joi from 'joi';
+
+// v4
+const schema = toTypedSchema(Joi.object({ email: Joi.string().email() }));
+
+// v5 - remove the call to `toTypedSchema`
+const schema = Joi.object({ email: Joi.string().email() });
+
+const { value, errorMessage } = useForm({ validationSchema: schema });
+```