README.md in mercenary-0.3.6 vs README.md in mercenary-0.4.0

@@ -95,14 +95,13 @@
 
 ### `Command`
 
 #### `#new`
 
-Create a new command. Accepts two arguments:
+Create a new command. Accepts one argument:
 
 - `name` - the name of your command, as a symbol
-- `parent` - (optional) the parent Command
 
 #### `#version`
 
 Sets or gets the version of the command. Accepts an optional argument:
 
@@ -165,10 +164,10 @@
 The class of the argument defaults to `String`, but you can optionally set a
 different class to create, e.g. `Array`, if you are expecting a particular class
 in your code from this option's value. The description is also optional, but
 it's highly recommended to include a description.
 
-#### `#alias` 
+#### `#alias`
 
 Specifies an alias for this command such that the alias may be used in place of
 the command during execution. Accepts one argument:
 
 - `cmd_name` - the alias name for this command as a `Symbol`