Added -h flag to createdb call in README.
Added -h flag to createdb call in README.

Bogon/helios,Klaudit/helios,Klaudit/helios,Bogon/helios,mikeantonelli/helios,wlads/helios,koamac/helios,mikeantonelli/helios,wlads/helios,sideci-sample/sideci-sample-helios,helios-framework/helios,koamac/helios