I was so pleased to discover iCab allows AppleScript. This script in TextExpander allows me to grab the Title and URL of the front tab and copy it as a Markdown link. 

tell application "iCab" 
	set theName to name of current tab of front window 
	set theURL to url of current tab of front window 
	return "["  & theName & "](" & theURL & ")" 
end tell