1 - Add .travis.yml to your project
2 - Configure travis.yml file changing the {workspace-name} to your workspace name
3 - Add Fastlane to your project
4 - Add Fastlane Match to your project
5 - Create scripts/travis directory and add testflight.sh to it
6 - Install Travis client to encrypt your Fastlane credentials
7 - Execute travis encrypt "FASTLANE_PASSWORD={apple password}" --add
8 - Execute travis encrypt "MATCH_PASSWORD={match password}" --add
9 - That's all. When you merge PR on master, the release will start.