Request to expand the tool to China regions

[xgchena]

Thanks for providing the useful tool, I tried it in two regions, it works for me in us-west-2, but failed in cn-northwest-1 and the first problem seems incorrect URI, for example, the docker push command in buildspec uses a hardcoded URI suffix amazonaws.com, but in China regions the suffix should be amazonaws.com.cn.

Would you fix the problems and enable the tool in China regions?