Added WordCamp Cape Town 2018 (#575)
Added WordCamp Cape Town 2018 (#575)

* Added WordCamp Cape Town 2018

* Update wordcamp-cape-town-2018.json

Fixed error reported by Travis CI

szabgab/codeandtalk.com,szabgab/codeandtalk.com,szabgab/codeandtalk.com,szabgab/codeandtalk.com