docs: fix typo in fields/relationship.mdx (#12306)

Author: francescoamici

docs/fields/relationship.mdx

@@ -150,7 +150,7 @@ The `filterOptions` property can either be a `Where` query, or a function return
 | `id`          | The `id` of the current document being edited. Will be `undefined` during the `create` operation or when called on a `Filter` component within the list view.                            |
 | `relationTo`  | The collection `slug` to filter against, limited to this field's `relationTo` property.                                                                                                  |
 | `req`         | The Payload Request, which contains references to `payload`, `user`, `locale`, and more.                                                                                                 |
-| `siblingData` | An object containing document data that is scoped to only fields within the same parent of this field. Will be an emprt object when called on a `Filter` component within the list view. |
+| `siblingData` | An object containing document data that is scoped to only fields within the same parent of this field. Will be an empty object when called on a `Filter` component within the list view. |
 | `user`        | An object containing the currently authenticated user.                                                                                                                                   |
 
 ## Example