DOC transfered wiki to sphinx-doc

* changed structure of index-file
* copied the WIKI at commit 67601b2d33f5a3cf8e9633e6ad92cca286840680
* adapted the markdown to rst

doc/user/raspi.rst

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+************
+Raspberry Pi
+************
+
+This instructions were tested on Raspbian.
+
+Unless you have done any distro with libusb-1.0 on the Raspberry Pi, the
+following instructions should works fine on your raspberry distro.
+
+Dependencies
+------------
+
+First, install the packages available on Raspbian.
+
+::
+
+    # apt-get install python-imaging python-serial python-setuptools
+
+PyUSB
+^^^^^
+
+PyUSB 1.0 is not available on Ubuntu, so you have to download and
+install it manually
+
+1. Download the latest tarball from
+   `Sourceforge <http://sourceforge.net/projects/pyusb/files/>`__
+2. Decompress the zip file
+3. Install the library
+
+   ::
+
+       # wget ...
+       # unzip pyusb*.zip
+       # cd pyusb*
+       # python setup.py build
+       # sudo python setup.py install
+
+python-qrcode
+^^^^^^^^^^^^^
+
+1. Checkout the code from github
+2. Install the library
+
+   ::
+
+       # git clone https://github.com/lincolnloop/python-qrcode
+       # cd python-qrcode
+       # python setup.py build
+       # sudo python setup.py install
+
+Installation
+------------
+
+If you have installed pyusb for libusb-1.0 then you need to:
+
+1. Download the latest file
+1. Decompress the file
+1. Install the library
+
+::
+
+    # git clone https://github.com/manpaz/python-escpos.git
+    # cd python-escpos
+    # python setup.py build
+    # sudo python setup.py install
+
+Now you can attach your printer and and test it with the example code in
+the project's `home <https://github.com/manpaz/python-escpos>`__