chore(Ch2): 現在形に統一
fix(travis): fix permission
chore(travis): `currentDir`を使うように
chore(travis): use bash
chore(travis): ignore `preview-html`
chore(travis): git merge
chore(travis): git push -f
Merge pull request #63 from azu/fix-branch

chore(Ch2): 現在形に統一