doc: add README for gomodcheck · qiniu/reviewbot@a7a3988

The process '/opt/hostedtoolcache/goreleaser-action/2.3.2/x64/goreleaser' failed with exit code 1

You are using 'latest' as default version. Will lock to '~> v2'.

Failed to restore: "/usr/bin/tar" failed with error: The process '/usr/bin/tar' failed with exit code 2