Describe how to include onPoint in other projects

README.md

@@ -2,7 +2,49 @@
 
 ## Installation
 
-You have to have python3 and pandoc installed.
-  
+This program is meant to be used as a git submodule of your actual presentation project, therefore you need to add it:
+
+	$ git submodule add -b release git@path-to-onpoint.git
+
+Make sure to have python3 and pandoc installed.
+Next, we can install all requirements:
+
 	$ cd onpoint
 	$ pip3 install -r requirements.txt
+
+## The Project Structure
+
+We recommend you to structure your project directory like this:
+
+	├── images
+	├── layouts
+	│   ├── default.html
+	│   ├── root.html
+	│   └── titlepage.html
+	├── meta.yml
+	├── onpoint
+	│   ├── main.py
+	│   ├── README.md
+	│   └── requirements.txt
+	├── slides
+	│   ├── chapter1.de.md
+	│   ├── chapter1.en.md
+	│   ├── chapter2.de.md
+	│   └── chapter2.en.md
+	├── slides.de.html
+	├── slides.en.html
+	├── slides.yml
+	└── styles
+      └── style.css
+
+* `onpoint` is where this program lives.
+* In `layouts`, you can create custom templates for your slides.
+* `meta.yml` is there to add language-specific meta information (like title internationalization).
+* `slides.yml` will contain a list of all chapters to be included. Their content is expected to live in files inside the `slides` folder.
+* You can store your usual web resources in the folders `styles` and `images`.
+
+## Updating onPoint
+
+In order to update the version of onPoint in an existing project, run the following command:
+
+	$ git submodule update --recursive --remote