[docs] moved into folders

docs/dev/docs.dev.docs.md

@@ -0,0 +1,46 @@
+---
+{
+	"_label": "How to Build ERPNext Documentation"
+}
+---
+This page explains how to build the ERPNext documentation.
+
+The documentation sources are in the [`docs` folder of the erpnext repository](https://github.com/webnotes/erpnext/tree/master/docs). The source files are in markdown format and they have a custom header that is separated by `---`
+
+## Documentation Header
+
+The header contains the title of the page and sub pages (table of contents) in any. Example of a simple header with title is:
+
+	---
+	{
+		"_label": "How to Build ERPNext Documentation"
+	}
+	---
+	
+#### Adding Table of Contents
+
+Table of contents is added by setting the `_toc` property as below:
+
+	---
+	{
+		"_label": "Developer",
+		"_toc": [
+			"docs.dev.install",
+			"docs.dev.quickstart",
+			"docs.dev.framework",
+			"docs.dev.api",
+			"docs.dev.modules",
+			"docs.dev.translate"
+		]
+	}
+	---
+	
+## Building the Output pages
+
+Once the sources have been edited / updated, to build the documentation, login into your local ERPNext account.
+
+1. Open __Documenation Tool__ by adding `#Form/Documentation Tool` to the address bar.
+1. Check on all the pages to be generated
+1. Click on "Make Docs"
+
+All the output pages are generated in the `public/docs` folder