Document the rock_paper_scissors Game

[eberjohns]

This sub-issue focuses on creating comprehensive documentation for the newly added "Rock, Paper, Scissors" game. This includes both user-facing instructions and internal code documentation.

Specific Tasks:

• Create rock_paper_scissors/instructions.md:
  • This file should provide clear, concise instructions on how to play the Rock, Paper, Scissors game.
  • Include details on how to run the game from the command line.
  • Briefly describe the game's rules and objective.
• Add Code Documentation to rock_paper_scissors/rock_paper_scissors.py:
  • File-level docstring: Add a docstring at the very top of the file explaining the overall purpose of the script.
  • Function docstrings: For each function.
  • play_round, main), add a docstring that clearly explains:
  • In-line comments: Add comments within complex logic blocks or non-obvious sections of code to explain the "why" behind the implementation.