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Headings, emphasis, lists
# H1, ## H2, ### H3. **bold**, *italic*, `inline code`. Unordered lists with - or *; ordered lists with 1. 2. 3. — actual numbers don't matter.
Links and images
[text](url) for links.  for images. Reference-style links keep paragraphs clean: [text][1] then [1]: https://… at the bottom.
Code blocks
Triple backticks with a language tag for syntax highlighting: ```ts on the opener, ``` on the closer. Indent four spaces for a code block without highlighting.