[Problem] yarn registry should be different in different locations.

[92hackers]

Background

Currently, we use https://registry.npmmirror.com as yarn registry in stack, which is very slow when run stacks at outside of China.

Solution

In China, set yarn registry as https://registry.npmmirror.com.
In outside of China, do not set yarn registry, let it be default value.

[92hackers]

We don't install deps when creating the git repo, and when we don't create sourcecode template from command line tools, then we can resolve this problem.