[docs] moved to file generator

docs/docs.md

@@ -1,11 +1,17 @@
 ---
 {
-	"_label": "Documentation"
+	"_label": "Documentation",
+	"_toc": [
+		"docs.quickstart",
+		"docs.framework",
+		"docs.modules"
+	]
 }
 ---
 Welcome to the ERPNext Developer documentation.
 
-The documentation is split into two parts.
+### Is this for me?
 
-- Part 1 covers the code and all functions, methods available
-- Part 2 covers all the models in the product including core models
+To starting hacking into ERPNext, you must have some understanding of how a dynamic web application works. There are hundreds of architectures and frameworks to make web development easier, but at the core there are a few elements that are important to understand.
+
+ERPNext is built on `wnframework` which is primarily developed for ERPNext but can be extended to make similar database driven applications. wnframework uses Python on the server-side and has a javascript based client for entering data, managing workflow and making reports. 

docs/docs.modules.md

@@ -0,0 +1,6 @@
+---
+{
+	"_label": "Modules"
+}
+---
+The models used in both `wnframework` (**Core** module) and ERPNext are listed here. The basic element of the model is a `DocType`, which is most often also a database table. The model properties are called `DocFields`, which describe the view and the database columns.