doc: Release the documentation and write the basic documentation content (battle section).

[Bli-AIk]

🔗 Is your feature request related to a specific issue?

The basic infrastructure for SoupRune's documentation website is complete, but the main content has not yet been written.

Considering that the battle system is the goal for the current stage (v0.5.0 -> v0.6.0), the battle system documentation is a priority.

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💡 Feature Description

• Write a non-serious version of the battle system documentation doc: Add Battle System docs #37
• Write a serious version of the battle system documentation doc: Add Battle System docs #37
• Create the file format documentation for battle.ron and performance.ron. (RON Property Cheat Sheet)
• Enable documentation to be successfully deployed and run on GitHub Pages

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⚖ Alternatives Considered

N/A

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📝 Additional Information

Before (or during) this task, we may need to prioritize addressing the issue of no webpage content appearing upon entering GitHub Pages.

The RON Property Cheat Sheet clearly shouldn't be just one page; perhaps it could be considered as a "jump page to another table of contents."