Replace INSTALL file by an updated & proper README.md

INSTALL

-################################################
-#                                              # 
-#      CADBIOM INSTALLATION INSTRUCTIONS       #
-#                                              #
-#        http://cadbiom.genouest.org/          #
-#                                              # 
-################################################
-
-
-
-################################################
-#                   LICENCE                    #
-################################################
-
-CADBIOM is freely available on cadbiom.genouest.org,
-distributed under the terms of the
-GNU General Public License.
-
-
-
-
-################################################
-#                 INSTALLATION                 #
-################################################
-
-CADBIOM is mainly developed in Python 2.7
-
-(1) Before running Cadbiom, the following
-Python packages have to be installed :
-
-	- python-pygraphviz
-	- python-lxml
-	- python-networkx
-	- python-gtksourceview2
-
-For Debian / Ubuntu users, you will find them
-on the distribution packages library.
-
-
-
-(2) Unpack cadbiom.tar.gz
-It contains the cadbiom folder with :
-
-	- antlr3 (folder)
-	- bio_models (folder)
-	- gt_gui (folder)
-	- models (folder)
-	- solver_32 (folder)
-	- solver_64.py (folder)
-	- cadbiom_des.py (file)
-	
-(3) CADBIOM software requires a SAT solver,
-according to your distribution, 32 bits and
-64 bits versions are proposed.
-
-Add the appropriate folder (solver_32 or solver_64)
-to your PYTHONPATH .
-
-If the proposed versions of SAT solver do not work,
-sources are available on CADBIOM website.
-
-
-
-(4) Run the following command in your shell :
-python cadbiom_des.py
-

README.md

+################################################
+#                                              #
+#      CADBIOM INSTALLATION INSTRUCTIONS       #
+#                                              #
+#        http://cadbiom.genouest.org/          #
+#                                              #
+################################################
+
+
+# Installation
+
+CADBIOM is mainly developed in Python 2.7
+
+
+## System requirements
+
+Before running Cadbiom, the following system packages
+have to be installed from the distribution packages library :
+
+* python-gtksourceview2
+* python-dev
+* libxml2-dev
+* libxslt1-dev
+* graphviz-dev
+
+
+## Python requirements
+
+Before running Cadbiom, the following Python packages
+have to be installed from pypi repository :
+
+* lxml==3.6.4
+* networkx==1.11
+* pygraphviz==1.3.1
+* pyCryptoMS==0.1
+
+Note: Cadbiom software requires a SAT solver which is
+proposed as a Python wrapper by an independant library (pyCryptoMS).
+
+You can install these dependencies with the following command:
+
+    make build
+
+or:
+
+    python2.7 install -r requirements.txt
+
+
+## Cadbiom package
+
+Unpack cadbiom.tar.gz;
+It contains the cadbiom folder with :
+
+- antlr3 (folder)
+- bio_models (folder)
+- gt_gui (folder)
+- models (folder)
+- cadbiom_des.py (file)
+- Makefile (file)
+- README.md
+
+
+# Utilization
+
+Run the following command in your shell :
+
+    make run
+
+or:
+
+    python cadbiom_des.py
+
+
+# License
+
+CADBIOM is freely available on cadbiom.genouest.org,
+distributed under the terms of the
+GNU General Public License.