cloudy1 150e4e8be6 Update tutorial.md (#8328) ...

* Update tutorial.md

fix "unknown: Unexpected token" in "codepen.io".

* tweaks per suggestion

2016-11-29 13:00:33 -08:00

..

tutorial.md

Update tutorial.md (#8328)

2016-11-29 13:00:33 -08:00