# AI notes: heading levels must be consecutive [//]: # (excludeFromIndex) When editing repository documentation: - Use heading levels in order: `#`, then `##`, then `###`, and so on. - Do not skip levels, for example `#` directly to `###`. - Keep the heading tree balanced inside each document; sibling sections should use the same level. - If you add a subsection and the parent is `##`, the child must be `###`.