Updated docs

Author: kmvanbrunt

docs/examples/first_app.rst

@@ -68,7 +68,7 @@ initializer to our class::
 
         # Make maxrepeats settable at runtime
         self.maxrepeats = 3
-        self.add_settable(cmd2.Settable('maxrepeats', int, 'max repetitions for speak command'))
+        self.add_settable(cmd2.Settable('maxrepeats', int, 'max repetitions for speak command', self))
 
 In that initializer, the first thing to do is to make sure we initialize
 ``cmd2``. That's what the ``super().__init__()`` line does. Next create an
@@ -204,7 +204,7 @@ method so it looks like this::
 
         # Make maxrepeats settable at runtime
         self.maxrepeats = 3
-        self.add_settable(cmd2.Settable('maxrepeats', int, 'max repetitions for speak command'))
+        self.add_settable(cmd2.Settable('maxrepeats', int, 'max repetitions for speak command', self))
 
 Shortcuts are passed to the ``cmd2`` initializer, and if you want the built-in
 shortcuts of ``cmd2`` you have to pass them. These shortcuts are defined as a

docs/features/initialization.rst

@@ -50,6 +50,7 @@ capabilities which you may wish to utilize while initializing the app::
             self.add_settable(cmd2.Settable('foreground_color',
                                             str,
                                             'Foreground color to use with echo command',
+                                            self,
                                             choices=fg.colors()))
 
         @cmd2.with_category(CUSTOM_CATEGORY)

docs/features/plugins.rst

@@ -81,7 +81,7 @@ example::
             super().__init__(*args, **kwargs)
             # code placed here runs after cmd2.Cmd initializes
             self.mysetting = 'somevalue'
-            self.add_settable(cmd2.Settable('mysetting', str, 'short help message for mysetting'))
+            self.add_settable(cmd2.Settable('mysetting', str, 'short help message for mysetting', self))
 
 You can hide settings from the user by calling
 :meth:`~cmd2.Cmd.remove_settable`. See :ref:`features/settings:Settings` for