Committing before help rework

wiki/Codebase/Command/Macros.md

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+# CliGen::Command Macros
+
+## TOC
+- [Overview](#Overview)
+
+## Overview
+This page is dedicated to discussing the macros associated & embedded in the `CliGen::Command` class.
+
+
+## Macros
+### argument
+This macro used in a Command subclass does one thing and well. It helps define an instance variable with valid annotation keys and helps debug any misconfigurations before you experience them via the compiler and/or during runtime.
+
+```crystal
+require "cligen"
+
+@[CliGen::CommandInfo(description: "Thing")]
+class MyClass << CliGen::Command
+  argument(myvar : String = "abc",
+           description: "This var changes the printed string",
+           options: %w[ abc def ghi ]
+  )
+  
+  def main
+    puts "Chosen string : %s" % @myvar
+  end
+end
+```
+*Example: String Argument*
+
+The above essentialy expands out to the following
+
+```crystal
+require "cligen"
+
+@[CliGen::CommandInfo(description: "Thing")]
+class MyClass << CliGen::Command
+
+  @[CliGen::Argument(description: "This var changes the printed string", options: %w[ abc def ghi ])]
+  @myvar : String = "abc"
+  
+  def main
+    puts "Chosen string : %s" % @myvar
+  end
+end
+```
+
+It simply provides you a user friendly "DSL" to define a (sometimes) extensive annotation that would be a PITA to do by hand.
+
+However, the use of the macro has much more attributed to it than just doing this.
+
+For a more detailed walkthrough & it's required keys go to the [argument macro doc](./Macro/argument.md).
+
+
+