Add project description, README overview, and GitHub topics

[deepak0x]

The repository currently has no About description, no topics, and the README does not clearly explain what the project does at a glance. This makes it hard for visitors (and search) to understand the project.

Tasks

1. Read the existing code and README to understand the project's purpose:

   • README.md (current state)
   • game.py, general_game_runner.py, template.py, utils.py, x.py
   • agents/, Sequence/, wiki-template/

2. Propose a one-line repository description (≤ 120 chars) suitable for the GitHub About section. Add it to the PR description so I can paste it into repo settings (the About field is metadata and cannot be set from a PR).

3. Update README.md to include, near the top:

   • A short project tagline
   • A 2–4 sentence "What is this?" section
   • A "How to run" section based on general_game_runner.py
   • A brief description of the agents/ folder structure

4. Suggest 5–8 GitHub topics (e.g. ai-planning, pddl, multi-agent, etc.) — list them in the PR description.

Out of scope

• Do not change game logic or agent code.
• Do not add new dependencies.

@copilot please pick this up.

[deepak0x]

@copilot pick this up