[Hong Kong] Ask volunteers to run emma

Since the beginning of this week, we started to see a huge dropping on Tor usage in Hong Kong. I'm reaching out to partners and volunteers in HK to run emma and see what's happening.

Directly connecting users - https://metrics.torproject.org/userstats-relay-country.html?start=2021-05-08&end=2021-08-06&country=hk&events=off

Bridge usage - https://metrics.torproject.org/userstats-bridge-country.html?start=2021-05-08&end=2021-08-06&country=hk