Update README.md
Update README.md
Renamed Sega Genesis to proper Sega Master System in configs
Added in TurboGraphx 16 support
Corrected small syntax error for rom loader
Added in controls for TurboGraphx 16, updated wiki with layout
Added RCB layout for TurboGraphx 16
Corrected sound driver in mednafen for XBMC fullscreen games
Added Game Gear support and presets
Added in script changes for Game Gear
Update README.md
Merge branch 'beta' of https://github.com/ProfessorKaos64/RetroRig into beta

merge of master