Use this workflow to search Markdown syntax by keyword and paste the syntax into any app.
Type md [keyword] (or set your own shortcut) to search with the documentation. Press ENTER to copy the syntax to the clipboard and paste it in the front-most app.
Clone this repo and double-click the markdown-syntax-documentation.alfredworkflow file or download just the workflow file.
gnestor: Alfred workflow template
John Gruber: Markdown: Syntax Documentation