add GDG DevFest Taipei 2017 (#350)
add GDG DevFest Taipei 2017 (#350)

* Add DevFest Taipei.

* remove spaces.

* add GDG DevFest Taipei 2017.

* add GDG DevFest Taipei 2017.

GDGYangon/gdg-yangon-devfest-2015-website,GDGYangon/gdg-yangon-devfest-2015-website