intro.en.yml in intro-0.2.0

- old
+ new

@@ -74,9 +74,10 @@
         element: Enter the CSS selector of element, e.g. .header
         zindex: Enter the z-index of component
         fixed_placement: Fixed component to ensure the correct placement
         btn_visible: Use buttons
         overlay_visible: Use modal overlay
+        not_sign_visible: Display tour without signing in
         btn_complete_text: Enter the text of button
         btn_complete_link: Enter the link of button
         cancel_link: Show a cancel icon in the header of the component
       tips:
         simple_route: Auto add controller, action, query and ident by simple route
\ No newline at end of file