With the addition of new config options in 1.3, the existing documentation for Custom Asteroids' config format has become too hard to navigate and read. It should be rewritten to be more user-friendly, including the following changes:

• content split across multiple pages instead of one very long page
• common data like distributions or expression syntax should be explicitly linked from descriptions of the fields that use them (improves both visibility of these features and makes the documentation as a whole more topic-centered)
• more examples