What's Changed
* Update quickstart.md by sugan-reden in https://github.com/jupyter-book/mystmd/pull/1631
* 🏷️ Do not report available updates for whitelabelled applications by agoose77 in https://github.com/jupyter-book/mystmd/pull/1636
* 🪪 Improvements to spdx license validation by fwkoch in https://github.com/jupyter-book/mystmd/pull/1634
* Improve web documentation and document styles by choldgraf in https://github.com/jupyter-book/mystmd/pull/1628
* 🎁 Use `commonDirectiveOptions` in all directives by agoose77 in https://github.com/jupyter-book/mystmd/pull/1650
* 👩💻 Proposed notes on versioning for contributors by fwkoch in https://github.com/jupyter-book/mystmd/pull/1658
* 🖼️ Use Lorem Picsum instead of Unsplash for demo images by agoose77 in https://github.com/jupyter-book/mystmd/pull/1660
* ⌨️ Add `keyboard` support to `myst-to-html` by agoose77 in https://github.com/jupyter-book/mystmd/pull/1677
* 🔗 Improve link formatting by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1684
* 🔧 More typst export improvements by fwkoch in https://github.com/jupyter-book/mystmd/pull/1665
* Proofread some grammar and typos in the docs by sugan-reden in https://github.com/jupyter-book/mystmd/pull/1692
* 🎬 Add video conversions for avi, mov -> mp4 by fwkoch in https://github.com/jupyter-book/mystmd/pull/1696
* 📖 Spelling of `multiline` --> `multline` by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1708
* "is is" by matthew-brett in https://github.com/jupyter-book/mystmd/pull/1709
* 👩🏼💼 Update OSI Licenses by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1710
* 🤫 Quiet warning about newLineInDisplayMode by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1718
* ⌨️ Code cell options can have caption by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1726
* 𝐁 Bold text in typst in line fixed by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1717
* 🧮 Trim all math to ensure no new lines in latex output by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1728
* 🖼️ Export iframe/aside for markdown writing by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1719
* 🏷️ Do not write out alt text for markdown export by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1720
* 🏷️ Label duplication warning by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1723
* ⌨️ Do not export code block options when undefined by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1721
* 📖 Improve the documentation around abbreviations by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1729
* 🏷️ Do not write implicit labels for markdown by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1722
* 🖼️ Read iframe options from html by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1725
* 🧮 Update typst math conversion by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1730
* 🌁 Join gates plugin before blocks by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1727
* 🎭 Support more characters in typst export by fwkoch in https://github.com/jupyter-book/mystmd/pull/1738
* 🎆 Prevent html outputs that translate to empty images by fwkoch in https://github.com/jupyter-book/mystmd/pull/1739
* 🌎 Remove TLD of `.es` from linkify by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1740
* 🔧 Fix project cross-references in typst by fwkoch in https://github.com/jupyter-book/mystmd/pull/1742
* 🖐 Support restarting counter for each typst article in multi-article export by fwkoch in https://github.com/jupyter-book/mystmd/pull/1741
* 🏷️ Typst enable paragraph referencing by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1745
* 🚮 Remove broken and unused reactive roles by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1746
* 📄 Prioritize project-level parts for project-level typst export by fwkoch in https://github.com/jupyter-book/mystmd/pull/1743
* 🙈 Notebook Cell Tags Documentation by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1750
* 🚀 Always launch a new Jupyter Server by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1751
* 📖 Update documentation for Jupyter Book V2 vs V1 references by choldgraf in https://github.com/jupyter-book/mystmd/pull/1732
* 🧮 Update typst math conversion (v0.0.14) by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1754
* 🙈 Remove hidden output nodes from static exports by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1756
* 🏷️ Do not label implicit heading nodes by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1755
* 📑 Add proof, solution, exercise defaults to typst export by rowanc1 in https://github.com/jupyter-book/mystmd/pull/1757
New Contributors
* sugan-reden made their first contribution in https://github.com/jupyter-book/mystmd/pull/1631
* matthew-brett made their first contribution in https://github.com/jupyter-book/mystmd/pull/1709
**Full Changelog**: https://github.com/jupyter-book/mystmd/compare/mystmd1.3.17...mystmd1.3.20