Updated README

README.md

@@ -7,17 +7,20 @@ modes. This can be seen as an asynchronous variant of the CESTAC method, or a
 subset of Monte Carlo Arithmetic, performing only output randomization through
 random rounding.
 
-**NB:** This is the *stable* version of Verrou. It is based on Valgrind-3.10.1,
-which supports only relatively old configurations:
+**NB:** This is released version 0.9 of Verrou. It is based on Valgrind-3.10.1,
+which supports the following system configurations:
 
 - `gcc`, versions 3.x to 5.x
 - `clang`, versions 2.9 to 4.x
 - `glibc`, versions 2.2 to 2.20
 
-In order to install Verrou on newer platforms, please use the [`valgrind-update`](https://github.com/edf-hpc/verrou/tree/valgrind-update) branch.
 
 ## Installation
 
+The installation procedure described here has been tested only on Linux
+platforms. It may also work for MacOS, but this has never been tested.
+
+
 ### Get the sources
 
 Fetch valgrind's sources:
@@ -83,3 +86,41 @@ Beware, this requires lots of tools which are not necessarily tested for in
   - xsltproc
   - docbook-xsl
 
+
+## Contributing
+
+Please let us know if you used Verrou (successfully or not), and even more if it
+helped you improve the quality of your code.
+
+Also, if you make improvements to this code or have suggestions, please do not
+hesitate to fork the repository or submit bug reports on
+[github](https://github.com/edf-hpc/verrou). The repository's URL is:
+
+    https://github.com/edf-hpc/verrou.git
+
+
+### Contributors
+
+- [F. Févotte](https://github.com/ffevotte)
+- [B. Lathuilière](https://github.com/lathuili)
+
+
+
+## License
+
+Copyright (C) 2014-2017, EDF.
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307, USA.
+
+The GNU General Public License is contained in the file COPYING.