markdown editor

It seems like you're interested in the markdown editor. While the context provided doesn't specifically mention a markdown editor, it does cover some related topics from Apple's WWDC sessions that might be of interest.

For instance, the session titled "Get started with Writing Tools" discusses advanced text editing features, such as proofreading, rewriting, and summarizing text, which could be useful in a markdown editing context. You can find more about these features in the session Get started with Writing Tools.

Additionally, the "Xcode essentials" session provides insights into using Xcode for development, including shortcuts and commands that could enhance your coding experience. You might find the section on using bookmarks and mark comments helpful for organizing your code, which is a common task when working with markdown files. Check out the session Xcode essentials for more details.

If you have any specific questions about these sessions or need further information, feel free to ask!