docs: use correct version
docs: use correct version

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claytonbrown/dokku,claytonbrown/dokku,claytonbrown/dokku,progrium/dokku,dokku/dokku,claytonbrown/dokku,claytonbrown/dokku,progrium/dokku,claytonbrown/dokku,progrium/dokku,progrium/dokku,dokku/dokku,progrium/dokku,dokku/dokku,dokku/dokku,dokku/dokku,dokku/dokku,progrium/dokku,progrium/dokku,progrium/dokku,dokku/dokku,claytonbrown/dokku,dokku/dokku,claytonbrown/dokku