Merge pull request #12 from ataro24/develop

merge
Merge pull request #13 from ataro24/develop

modified stage
add quize box
Merge pull request #14 from ataro24/develop

Develop
effect string
Merge pull request #15 from itomo/effect/stage

effect string
fix
fix select button and add sound
Merge pull request #16 from ataro24/develop

fix
Merge pull request #17 from itomo/fix/select

fix select button and add sound
change top image
fix select button and add open stage
modified routing
Merge pull request #19 from ataro24/develop

modified routing
Merge pull request #18 from itomo/feature/image

Feature/image
Merge branch 'master' into gh-pages