Make sure you have the latest version of the Xcode command line tools installed:
Install fastlane using
[sudo] gem install fastlane -NV
or alternatively using
brew cask install fastlane
fastlane mac release
Push a new release build to the App Store
This README.md is auto-generated and will be re-generated every time fastlane is run. More information about fastlane can be found on fastlane.tools. The documentation of fastlane can be found on docs.fastlane.tools.