Merge branch 'improve-wording' into 'master'

Add a word about sudo fastlane init

See merge request tcm-projects/react-native-boilerplate!17

docs/beta builds.md

@@ -186,3 +186,11 @@ Before continuing make sure you have:
 
 - [ ] This thing
 - [ ] This thing
+
+
+## Troubleshooting
+
+### Stuck at `bundle install` running `fastlane init`
+
+If the `fastlane init` process is stuck when running `bundle install` it may mean that `bundle install` is asking for root permissions.  
+You can stop the process and retry again with `sudo fastlane init`, however you will need to change back ownership of the generated files to your user when it finishes (`sudo chown <your-user> <files>`).