[ja] Follow #867
[ja] Follow 347b00e03c18963e6c279e124b228c9df7b6fd7b
Merge pull request #871 from suzuki/feature/ja-follow-867

[ja] Follow #867
Merge pull request #872 from suzuki/feature/ja-follow-fix-github

[ja] Follow 347b00e03c18963e6c279e124b228c9df7b6fd7b
Remove outdated information.