Supported Markdown

Strictly CommonMark plus GFM tables and task lists. Full HTML rendering is intentionally unsupported — only a blessed inline subset (br, kbd, sub, sup, mark, del) renders; everything else stays visible as muted mono.

Blocks

• ATX headings #–###### (optional closing #), Setext === / ---
• Fenced code (```, ~~~) + indented code, with syntax highlighting
• Blockquotes incl. nested >>; GitHub alerts (> [!NOTE]) tint the bar
• Unordered (* - +), ordered (1. 1)), task (- [ ]) lists
• GFM tables with alignment and dividers
• Diagrams: mermaid, d2, Graphviz, PlantUML (cached render, code fallback)
• Math via ZaTeX: ```math fences, whole-line $$…$$, inline $…$
• YAML frontmatter renders nothing

Inlines

• **bold**, *italic*, ***both***, ~~strike~~, `code`
• Links [text](url), autolinks, bare https:// URLs, images
• Backslash escapes (\*, \_, …)