Add ruleset for the default branch to require CI is passed?

[MrCroxx]

Hi @hyunsik , would you help to setup the ruleset for the default branch to require the CI is passed before merging? Or I can help you with premissions.

[hyunsik]

I've turned on 'Require status checks to pass' option for default branch 'master'.

[MrCroxx]

Verified via #58 , close.