Update Idle's online doc url.

Lib/idlelib/EditorWindow.py

@@ -153,7 +153,7 @@ class EditorWindow(object):
                     # Safari requires real file:-URLs
                     EditorWindow.help_url = 'file://' + EditorWindow.help_url
             else:
-                EditorWindow.help_url = "http://docs.python.org/%d.%d" % sys.version_info[:2]
+                EditorWindow.help_url = "https://docs.python.org/%d.%d/" % sys.version_info[:2]
         currentTheme=idleConf.CurrentTheme()
         self.flist = flist
         root = root or flist.root