Windows - Updated build instruction for mingw64
Windows - Updated build instruction for mingw64

MarinnaCole/LightZone,ktgw0316/LightZone,MarinnaCole/LightZone,MarinnaCole/LightZone,ktgw0316/LightZone,ktgw0316/LightZone,ktgw0316/LightZone,MarinnaCole/LightZone,ktgw0316/LightZone,MarinnaCole/LightZone,ktgw0316/LightZone,MarinnaCole/LightZone,ktgw0316/LightZone,MarinnaCole/LightZone