Use 'staging' subdomain for Jekyll-based web app:
Use 'staging' subdomain for Jekyll-based web app:

If a pull request coming to yasslab/railsguides.jp is merged,
it is going to be deployed to staging.railsguides.jp from now.
For now, we need a manual deploy from Staging to Production.

yasslab/railsguides.jp,yasslab/railsguides.jp,yasslab/railsguides.jp,yasslab/railsguides.jp