doc(github_repository): Removed misleading note about unsupported un-archiving

Author: ViacheslavKudinov

website/docs/r/repository.html.markdown

@@ -108,7 +108,7 @@ The following arguments are supported:
 and after a correct reference has been created for the target branch inside the repository. This means a user will have to omit this parameter from the
 initial repository creation and create the target branch inside of the repository prior to setting this attribute.
 
-- `archived` - (Optional) Specifies if the repository should be archived. Defaults to `false`. **NOTE** Currently, the API does not support unarchiving.
+- `archived` - (Optional) Specifies if the repository should be archived. Defaults to `false`.
 
 - `archive_on_destroy` - (Optional) Set to `true` to archive the repository instead of deleting on destroy.