Summarized Changelog

• Added mdbook completions subcommand which provides shell completions
• Added --title and --ignore flags to mdbook init to avoid the interactive input
• If running a Rust example does not have any output, it now displays the text "No output" instead of not showing anything
• Code block language tags can now be separated by space or tab (along with commas) to match the behavior of other sites like GitHub and rustdoc
• Updated to highlight.js 11. This has various highlighting improvements
• Inline code blocks inside a header are no longer highlighted when output.html.playground.editable is true

Full Changelog here

• Use init command with new --title flag, see that test website is viewable locally