The `--no-deploy` typo was in there twice, you forgot one. :)

I just noticed that the [install gems section](https://github.com/tdm00/gitlabhq/blob/511ea7fe8e549c2abcd6dba9d3979a8a1c46559f/doc/install/installation.md#install-gems) also excludes the unicorn and aws groups. 

Maybe we could add 
```
This is the same command you used in the [Install Gems section](#install-gems) with `--path vendor/bundle --no-deployment` instead of `--deployment`.
```

That way people can copy-paste the command, but also understand its intention.