cleanup and reorganize namespaces

Author: heapwolf

README.md

@@ -4,6 +4,22 @@ A series of functions to map a binary tree to a list. This is a port of
 [this](https://github.com/mafintosh/flat-tree) library and matches the tests.
 
 
+# USAGE
+This module is designed to work with the [`datcxx`][0] build tool. To add this
+module to your project us the following command...
+
+```bash
+build add heapwolf/flat-tree
+```
+
+
+# TEST
+
+```bash
+build test
+```
+
+
 # USAGE
 
 You can represent a binary tree in a simple flat list using the following
@@ -79,15 +95,6 @@ for (const auto& i: list) {
 ```
 
 
-# TESTING
-
-Using the `datcxx` project [`build`][0] tool, run the following command.
-
-```bash
-build run test
-```
-
-
 # SEE ALSO
 
 - [mafintosh/flat-tree][rs]: A series of functions to map a binary tree to a list.