desciption for none textposition

Author: archmoj

src/traces/bar/attributes.js

@@ -86,7 +86,8 @@ module.exports = {
             'this one, then the text gets pushed inside.',
             '*auto* tries to position `text` inside the bar, but if',
             'the bar is too small and no bar is stacked on this one',
-            'the text is moved outside.'
+            'the text is moved outside.',
+            'If *none*, no text appears.'
         ].join(' ')
     },