[docs] Fix typo

docs/src/docs/form/use-form.mdx

@@ -38,7 +38,7 @@ yarn add @mantine/form
 `useForm` hook accepts a single argument with a configuration object that includes the following properties (all of them are optional):
 
 - `initialValues` – initial form values, form types are generated based on this value
-- `validate` – an object with validation rules, [schema](/form/schema/) or a validation function that receives form values as an argument and returns object with validation errors
+- `validate` – an object with validation rules, schema or a validation function that receives form values as an argument and returns object with validation errors
 - `initialErrors` – initial form errors, object of React nodes
 - `clearInputErrorOnChange` – boolean value that determines whether input error should be clear when its value changes, true by default