Right now it is using a precompiled nginx 64 bit binary located in the nginx folder.
Mount your configuration files in c:/conf.
Remember to bind ports 80 and 443.
Example usage:
docker run --name nginx -p 80:80 -p 443:443 -v MY_CONF_DIR:c:/conf gatewayapps/nginx-windows:nano
In the future I will implement the build process for the nginx binary in the dockerfile itself.