Updated documentation of observation format in Simple World Comm

[pandyah5]

Description

This PR is a documentation change for the Simple World Comm environment. It requires no dependencies to reproduce.

Fixes #1207

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• This change requires a documentation update

Screenshots

I tried following the steps in the contribution guide to generate the HTMLs for environments but I faced an error. When I run the _scripts/gen_envs_mds.py script it gives me a module not found error for 'multi_agent_ale_py'. I will make a detailed issue following this. But I feel it's quite a harmless change to push given that its just documentation.

Checklist:

• I have run the pre-commit checks with pre-commit run --all-files (see CONTRIBUTING.md instructions to set it up)
• I have run pytest -v and no errors are present.
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I solved any possible warnings that pytest -v has generated that are related to my code to the best of my knowledge.
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[pandyah5]

Hi @elliottower, just wanted to bring your attention to this PR. Let me know if it requires any changes, would be glad to add them!

[jjshoots]

LGTM! Thanks for the contribution!