Fix command line docs.

Replace `stealTools` by `steal-tools` (the actual command name).

Before:
![screen shot 2014-11-11 at 17 21 15](https://cloud.githubusercontent.com/assets/724877/5000105/375690d4-69c7-11e4-83ea-0369e5cc91bf.png)

After:
![screen shot 2014-11-11 at 17 22 23](https://cloud.githubusercontent.com/assets/724877/5000122/593459c0-69c7-11e4-8af9-ba0170a383f4.png)