This function prompts you for the username (email) and password associated with your MATOS account. This is necessary so that you may interface with any project-specific files. If you don't have a MATOS account you can sign up for one here.
Arguments
- credentials
list with names "UserName" and "Password". This argument only exists for testing purposes and should not be used! It will store your credentials in your R history, which is definitely not good.