Support include file and Add GithubToken

87ee5d8 support following format about `include`
.gitconfig
```
[include]
  path = .gitconfig.local
```

.gitconfig.local
```
[user]
  name = sona-tar
```

4c81a02 support following format about `github.token`, and need will not be set `GITHUB_TOKEN` on ghr.
```
[github]
 token = aaaaaaaaaaaaaaaaaaaaaaaaaa
```