One of your teammates should clone this repository to their machine. Then, go through these steps:

1. Add a .gitignore to the cloned directory. The Github suggested one for Objective-C is a good start.
2. Uncomment the Pods/ line in the .gitignore. We want to ignore the Pods directory. Trust me on this.
3. Add a line that just says Secrets.m (or Constants.m, your preference) to the .gitignore. We want git to ignore your API keys and secrets, since this is going to be open source.
4. Make a new Xcode project in the cloned directory.
5. Run pod init in the directory, and add a pod (any pod) to the Podfile. Then run pod install. This will set up the workspace for the project, so everyone starts on the same foot.
6. Add Secrets.h and Secrets.m files to your project (using File > New > Cocoa Class).
7. In terminal, you'll probably need to do git reset HEAD and then git add .. This is just necessary when making changes to the .gitignore.
8. Once you've done that, run git status and ensure that the Secrets.m file and <username>.xcuserdata files are not in the list.
9. Commit! git commit -m "Initial Commit"
10. Push! git push origin master

Now your teammates can clone this repository and start branching and coding!