bundle init
Setup Gemfile
  bundle install
Merge pull request #1 from koudaiii/design

Design
middleman init
fix gemfile
Merge pull request #1 from koudaiii/develop

Develop
Merge pull request #2 from koudaiii/design

Design
Revert "Design"
Merge pull request #3 from doyomeki/revert-2-design

Revert "Design"