Should the unban syntax be changed or better documented?

Using mjolnir with the [https://github.com/spantaleev/matrix-docker-ansible-deploy](https://github.com/spantaleev/matrix-docker-ansible-deploy) playbook.

Mjolnir does not actually complete the unban tasks, here's an example:
```
Michael
"!mjolnir unban COC @zergling.man:perthchat.org"

Moderation-Bot
"Done updating rooms - no errors"
```

Check #perth:perthchat.org and the user is still banned though. :(

It anyone has any idea why 'unban' isn't working for me here i'm all ears.

Start by reproducing the reported `!mjolnir unban COC @zergling.man:perthchat.org` command with the matrix-docker-ansible-deploy playbook and verify the user's status in #perth:perthchat.org. Determine whether the command fails or the syntax is misunderstood; done means unban works as intended or the required syntax and behavior are clearly documented.

Written by the indexing model from the issue text.