RTFM
RTFM is a compact mod that introduces a customizable, in-game manual system powered by Markdown files. The mod is designed primarily for modpack creators who want to embed accessible documentation directly into the game without complex formatting.
By itself, the mod doesn't include any pre-built content — it serves as a framework for users to craft their own guides. To get started, simply drop Markdown files into the designated folder and tweak the configuration to organize navigation.

Once installed and after the first run of Minecraft, check the mod's config file. It lets you define manual tabs (visible in the GUI), which act as convenient entry points to specific pages. A default index is generated in the rtfm subfolder under config, showing how to add and link pages — just create Markdown files and reference them using standard Markdown links.

An extra perk of using Markdown for manual pages: if you host the files on GitHub or similar platforms, you automatically get a web-friendly version of your guide (excluding item images).