Updated Home (markdown)

Home.md

@@ -1,8 +1,8 @@
 Welcome to the aztk wiki!
 
-# Usage
+# CLI Usage
 [Cluster Configuration](Cluster-Configuration)
 
-# Developing
+# SDK Usage
 
-[How to write a plugin for aztk](Write-a-plugin-for-aztk)
+[Use or define a plugin](Use-or-define-a-plugin)