content: on run 
  tell application "Things3"
  	repeat with todo in selected to dos
  		set completion date of todo to (current date)
  		set theNotes to notes of todo
  		
  		repeat with todoParagraph in paragraphs of theNotes
  			if todoParagraph contains "://" then
  				do shell script "open " & quoted form of todoParagraph
  			end if
  		end repeat
  		
  		
  	end repeat
  end tell
  end run