Add missing word on praefect.md

doc/administration/gitaly/praefect.md

@@ -1509,7 +1509,7 @@ After creating and configuring Gitaly Cluster:
 1. Ensure all storages are accessible to the GitLab instance. In this example, these are
    `<original_storage_name>` and `<cluster_storage_name>`.
 1. [Configure repository storage weights](../repository_storage_paths.md#configure-where-new-repositories-are-stored)
-   so that the Gitaly Cluster receives all new projects. This stops new projects being created
+   so that the Gitaly Cluster receives all new projects. This stops new projects from being created
    on existing Gitaly nodes while the migration is in progress.
 1. Schedule repository moves for:
    - [Projects](#bulk-schedule-project-moves).