Emacs 31: An unofficial guide to Markdown-ts-mode

Emacs 31 introduces markdown-ts-mode, an experimental tree-sitter-based markdown mode that is feature-rich and covers the CommonMark specification plus most of GitHub Flavored Markdown, despite its experimental status. Users must manually enable the mode through their configuration file since it doesn't load by default, and should avoid outdated MELPA packages in favor of the built-in version. The guide provides setup instructions using use-package or traditional autoload methods to get the mode running.