[tor-relays] Bandwidth limits for Fallback Directory Mirror

[Cristian Consonni]

Hi,

due to the new DigitalOcean billing terms for bandwidth (see this other
thread [1]), I have limited my relay bandwidth to be sure I will stay
withing the limits:
```
RelayBandwidthRate 360 KB  # Throttle traffic to 100KB/s (800Kbps)
RelayBandwidthBurst 720 KB # But allow bursts up to 200KB/s (1600Kbps)
```

This is the relay:
https://metrics.torproject.org/rs.html#details/1211AC1BBB8A1AF7CBA86BCE8689AA3146B86423

The relay is also a Fallback Directory Mirror. I plan on keeping the
relay running, but I was wondering if the new limits disqualify it or if
they are a problem to let it be a fallback directory mirror.

Thanks for you help.

Cristian
p.s.: I've also asked to DO if they could revert my last charges for the
bandwidth, since they were quite steep and, frankly, unexpected. Let's
see what they say...

[1]:
https://lists.torproject.org/pipermail/tor-relays/2018-April/015051.html