Update the readme for 0.1.6 & the game mode setting.
Update the readme for 0.1.6 & the game mode setting.

Sanmilie/DarkMultiPlayer,RockyTV/DarkMultiPlayer,godarklight/DarkMultiPlayer,dsonbill/DarkMultiPlayer,rewdmister4/rewd-mod-packs,Kerbas-ad-astra/DarkMultiPlayer,RockyTV/DarkMultiPlayer,godarklight/DarkMultiPlayer,Dan-Shields/DarkMultiPlayer,81ninja/DarkMultiPlayer,81ninja/DarkMultiPlayer