Update standard schema info in index.mdx (#167)

* Update standard schema info in index.mdx

* Tweaks

* Update index.mdx

Author: colinhacks

www/src/content/docs/docs/index.mdx

@@ -147,7 +147,7 @@ const subjects = createSubjects({
 })
 ```
 
-We are using [valibot](https://github.com/fabian-hiller/valibot) to define the shape of the subject so it can be validated properly. You can use any validation library that is following the [standard-schema specification](https://github.com/standard-schema/standard-schema) - the next version of Zod will support this.
+We are using Valibot here to define and validate the shape of the subject. You can use any validation library that follows the [standard-schema specification](https://github.com/standard-schema/standard-schema), including Zod `^3.24.0` and Valibot `^1.0.0`. See the full list of compatible libraries [here](https://standardschema.dev/#what-schema-libraries-implement-the-spec).
 
 You typically will want to place subjects in its own file as it can be imported by all of your apps. You can pass it to the issuer in the `subjects` field.