docs: fix trivial things

Author: kenjis

user_guide_src/source/cli/cli_generators.rst

@@ -13,7 +13,7 @@ etc. You can also scaffold a complete set of files with just one command.
 Introduction
 ************
 
-All built-in generators reside under the ``Generators`` namespace when listed using ``php spark list``.
+All built-in generators reside under the ``Generators`` group when listed using ``php spark list``.
 To view the full description and usage information on a particular generator, use the command::
 
     > php spark help <generator_command>
@@ -28,7 +28,7 @@ where ``<generator_command>`` will be replaced with the command to check.
 
 .. note:: Working on modules? Code generation will set the root namespace to a default of ``APP_NAMESPACE``.
     Should you need to have the generated code elsewhere in your module namespace, make sure to set
-    the ``--namespace`` option in your command, e.g., ``php spark make:model blog --namespace Acme\Blog``.
+    the ``--namespace`` option in your command, e.g., ``php spark make:model blog --namespace Acme\\Blog``.
 
 .. warning:: Make sure when setting the ``--namespace`` option that the supplied namespace is a valid
     namespace defined in your ``$psr4`` array in ``Config\Autoload`` or defined in your composer autoload