text: Title: Workflow
  Body: Could someone comment, what is the workflow here.
  
  If after the initial code generation, if user needs to modify or add new features to existing prompt text, next run of the command gpt-engineer <folder_name> will do what?
  
  1. Completely remove existing code?
  2. Append code with new changes?
  3. Or something else?
  
  docker-compose.yml is generated but it is looking for a local.yml file? So I renamed docker-compose.yml -> local.yml and docker-compose up seems to work, but why?
  