update README to reflect ST3 support.

README.md

@@ -1,6 +1,6 @@
 ## Synopsis
 
-This is a [Sublime Text 2](http://www.sublimetext.com/2) plugin.
+This is a plugin for [Sublime Text 2](http://www.sublimetext.com/2) and [3](http://www.sublimetext.com/3).
 
 **Highlight whitespaces in documents**
 
@@ -21,6 +21,8 @@ Then clone this repository:
 
 That's it!
 
+Note for ST3 users: For Sublime Text 3, replace "2" with "3" in path names. (`%APPDATA%\Sublime Text 3` and so on)
+
 ## Options
 
 Several options are available to customize the plugin look 'n feel. The

highlight_whitespaces.py

@@ -56,11 +56,11 @@ def highlight_whitespaces(view):
     if view.size() <= max_size and not is_find_results(view):
         space_regions = find_whitespaces_spaces(view)
         view.add_regions('WhitespacesHighlightListener',
-                         space_regions, space_scope_name,
+                         space_regions, space_scope_name, '',
                          sublime.DRAW_EMPTY)
         tab_regions = find_whitespaces_tabs(view)
         view.add_regions('WhitespacesHighlightListener2',
-                         tab_regions, tab_scope_name,
+                         tab_regions, tab_scope_name, '',
                          sublime.DRAW_EMPTY)