added some more game and bot variables to docs

[vasinwr]

Added to the docs some variable I have come across when developing a feature 'hostile_bot' in my forked repository.

Let me know if it helps, so I will continue updating this doc as I go along making my custom bot.

Cheers :)

Description

Just contributed to the documents. No change in the javascript code.

TESTING STAGE

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

  Checklist:

• [x] I have read CONTRIBUTING.md
• [ ] I fully understand the Github Flow and I'm merging into the develop branch , which is the default branch, and not the master branch
• [ ] My code adheres to the code style of this project but most importantly of all to the things mentioned, which I have read, in CONTRIBUTING.md
• [ ] If my change requires a change to the documentation, I have updated the documentation in /docs accordingly.
• [ ] I have included the results of the test required.

[CLAassistant]

All committers have signed the CLA.

[ChadSki]

:+1: