diff --git a/README.md b/README.md
deleted file mode 100644
index 0749c3a576169d9a8b82110a6d10a0738ac5ccd9..0000000000000000000000000000000000000000
--- a/README.md
+++ /dev/null
@@ -1,34 +0,0 @@
-# Duniter Python API
-[![Coverage Status](https://coveralls.io/repos/duniter/duniter-python-api/badge.svg?branch=master&service=github)](https://coveralls.io/github/duniter/duniter-python-api?branch=master)
-
-Python implementation of [Duniter](https://git.duniter.org/nodes/typescript/duniter) BMA API
-
-## Features
- * Supports Duniter's [Basic Merkle API](https://git.duniter.org/nodes/typescript/duniter/blob/master/doc/HTTP_API.md) and [protocol](https://git.duniter.org/nodes/typescript/duniter/blob/master/doc/Protocol.md)
- * Asynchronous
- * Duniter signing key
-
-## Requirements
- * Python >= 3.5
- * [aiohttp >= 0.19](https://pypi.python.org/pypi/aiohttp "aiohttp")
- * [pylibscrypt](https://pypi.python.org/pypi/pylibscrypt "pylibscrypt")
- * [libnacl](https://pypi.python.org/pypi/libnacl "libnacl")
- * [base58](https://pypi.python.org/pypi/base58 "base58")
-
-## Installation
-You can install duniter-python-api and all its dependencies via the following pip install:
-
-`pip3 install duniterpy`
-
-Please take a look at the document [HTTP API](https://git.duniter.org/nodes/typescript/duniter/blob/master/doc/HTTP_API.md) to learn about the API.
-
-## Development
-- Create a python environment with pyenv
-- Add PYTHONPATH env var to your shell containing the path to this repository
-- Take a look at examples
-- Run examples from parent folder `python example/request_data.py`
-
-## Documentation
-
-- [HTML Documentation](https://git.duniter.org/clients/python/duniterpy/tree/master/docs/_build/html)
-- [Examples](https://git.duniter.org/clients/python/duniterpy/tree/master/examples)
diff --git a/README.rst b/README.rst
new file mode 100644
index 0000000000000000000000000000000000000000..6adc76eba90a075c0eb6603b86709699aef6a5bd
--- /dev/null
+++ b/README.rst
@@ -0,0 +1,73 @@
+Duniter Python API
+==================
+
+.. image:: https://coveralls.io/repos/duniter/duniter-python-api/badge.svg?branch=master&service=github
+    :target: https://coveralls.io/github/duniter/duniter-python-api?branch=master
+
+Python implementation of `Duniter <https://git.duniter.org/nodes/typescript/duniter>`_ BMA API
+
+Features
+--------
+
+* Supports Duniter's `Basic Merkle API <https://git.duniter.org/nodes/typescript/duniter/blob/master/doc/HTTP_API.md>`_ and `protocol <https://git.duniter.org/nodes/typescript/duniter/blob/master/doc/Protocol.md>`_
+* Asynchronous
+* Duniter signing key
+
+Requirements
+------------
+
+* Python >= 3.5
+* `aiohttp >= 0.19 <https://pypi.python.org/pypi/aiohttp>`_
+* `pylibscrypt <https://pypi.python.org/pypi/pylibscrypt>`_
+* `libnacl <https://pypi.python.org/pypi/libnacl>`_
+* `base58 <https://pypi.python.org/pypi/base58>`_
+
+Installation
+------------
+
+You can install duniter-python-api and all its dependencies via the following pip install:
+
+:code:`pip3 install duniterpy`
+
+Please take a look at the document `HTTP API <https://git.duniter.org/nodes/typescript/duniter/blob/master/doc/HTTP_API.md>`_ to learn about the API.
+
+Development
+-----------
+
+* Create a python environment with pyenv
+* Add PYTHONPATH env var to your shell containing the path to this repository
+* Take a look at examples
+* Run examples from parent folder :code:`python examples/request_data.py`
+
+Documentation
+-------------
+
+* `HTML Documentation <https://git.duniter.org/clients/python/duniterpy/tree/master/docs/_build/html>`_
+* `Examples <https://git.duniter.org/clients/python/duniterpy/tree/master/examples>`_
+
+Packaging and deploy
+--------------------
+
+Pypi
+++++
+
+*The README file must be in RestructuredText format (README.rst) for the long description field of the package.*
+
+In the development pyenv environment, install the following tools::
+
+    pip install --upgrade pip setuptools wheel
+
+    pip install twine
+
+Change the version number (semantic version number)::
+
+    ./release.sh 0.42.3
+
+Build the Pypi package in the ``dist`` folder::
+
+    python setup.py sdist bdist_wheel
+
+Deploy the package on the Pypi repository::
+
+    twine upload dist/*
+
diff --git a/duniterpy/documents/ws2p/heads.py b/duniterpy/documents/ws2p/heads.py
index 90d5236238f8867e2a37ca6b3f59b231072f9889..de359d649bbb366ce2a7f6c7c15e08626b60db8c 100644
--- a/duniterpy/documents/ws2p/heads.py
+++ b/duniterpy/documents/ws2p/heads.py
@@ -1,7 +1,6 @@
 import attr
 import re
 
-from ..document import  MalformedDocumentError
 from ..block import BlockUID
 from ..constants import ws2p_public_prefix_regex, ws2p_private_prefix_regex,\
     pubkey_regex, signature_regex, ws2pid_regex, block_uid_regex, ws2p_head_regex
@@ -108,7 +107,7 @@ class HeadV1:
                             .format(
                                 ws2pid=ws2pid_regex,
                                 software="[A-Za-z-_]+",
-                                software_version="[0-9]+[.][0-9]+[.][0-9]+",
+                                software_version="[0-9]+[.][0-9]+[.][0-9]+-?[A-Za-z0-9\.]+",
                                 pow_prefix="[0-9]+"))
 
     v0 = attr.ib(type=HeadV0)
@@ -165,7 +164,7 @@ class HeadV2:
             data = HeadV2.re_inline.match(offload)
             free_member_room = int(data.group(1))
             free_mirror_room = int(data.group(2))
-            return cls(v1, free_member_room, free_mirror_room), offload
+            return cls(v1, free_member_room, free_mirror_room), ""
         except AttributeError:
             raise MalformedDocumentError("HeadV2")
 
diff --git a/setup.py b/setup.py
index d6bb9ab8e46fc056acf218841fe39a691c3a227d..6c5c013723469f4242c01399c3951117359b911e 100644
--- a/setup.py
+++ b/setup.py
@@ -52,7 +52,7 @@ setup(
 
     description="A python implementation of [duniter](https://github.com/duniter/duniter) API",
 
-    long_description=open('README.md').read(),
+    long_description=open('README.rst').read(),
 
     # Active la prise en compte du fichier MANIFEST.in
     include_package_data=True,
@@ -71,4 +71,4 @@ setup(
     install_requires=install_requires,
     dependency_links=dependency_links
 
-)
\ No newline at end of file
+)