message: docs(ref): fix a simple typo
diff: @@ -9,7 +9,7 @@ The `IDType` generic-parameter is used to set the `_id` type of the referenced c
  There are [typeguards](../functions/typeguards/isDocument.md) to check if a Reference is populated.
  -For an more written out guide, there is the [Reference Other Classes](../../guides/advanced/reference-other-classes.md) Guide.
  +For a more written out guide, there is the [Reference Other Classes](../../guides/advanced/reference-other-classes.md) Guide.
  ## Example
  