anchor.diff:  
       $ docker build -t siraimg . --build-arg CACHE_DATE="$(date)"
   
  -#### Required Directory Structure
  +### Required Directory Structure
   
   To set up a scenario or impact simulation project, SIRA expects the following
   directory structure:
  
positive.code: 
      $ python sira -d /path/to/scenario_dir -sfl
  
  From outside of docker, on a terminal, use the following command to
  copy the project folder from container to host:
  
      $ docker cp $(docker ps -alq):/from/path/in/container /to/path/in/host/
  
  
  ## Testing
  
  
negative.code: to have been run first so that it has the initial output data to perform the
  analysis on.
  
  ### Option #1: Run a simulation and destroy the container when done
  
  The following command simulataneously does the following:
  bind mounts a volume in docker, creates a container in interactive mode, 
  runs a simulation, then destroys the container after simulation ends.
  
      $ docker run -it --rm -v /abs/local/path/<scenario_dir>:/<scenario_dir> \
        siraimg:latest \
        python sira -d <scenario_dir> -sfl --aws
  
  ### Option #2: Build a container for reuse / experimentation
  
  First, build a docker container from the prebuilt image.
  
  