Update project main README.md

Former-commit-id: 220edab40fd6d6ac788e485a78bda26dec667c4d

README.md

-iPPI-DB
+# iPPI-DB project repository
 
-Inhibitors of Protein-Protein Interaction Database
+Refactoring and update of iPPIDB database 
+
+### Description of the repository: 
+
+- **ansible**  
+    -  ansible receipe to deploy ippidb web site and content automatically 
+- **ichem_module**
+    - module for IChem private tool. 
+    INFO: to use IChem on TARS:  
+        `#module load /pasteur/projets/policy01/IPPI-DB/sources/iPPIDB/ichem_module/5.2.8`
+- **ippidb_backend**
+    - java codes a bit optimized and refactored by Hélenes Borges (a full refactoring is not mandatory but needed (can be done later)
+    (brainstorming and documentation available at https://docs.google.com/presentation/d/1-HZZiRmEtipNkKLxKpmAhNHmuBbsjCQ7jmcTdgmf88g/edit?usp=sharing)
+- **ippidb_binaries**
+    - binaries used for the ippidb website backend calculations
+    - the galaxy subdirectory contains Galaxy XML for galaxy-dev.web.pasteur.fr instance
+    - the lib_lib subdirectory contains the jar dependancies for the Java Chemaxon based program (sources are in ippidb_backend dir)
+- **ippidb_files**
+    - files mandatory for the binaries execution: 
+        - the Chemaxon licenses (update here and with the same name of the license is updated in 2018)
+- **ippidb_module**
+    - module for Chemaxon based private tools.
+    INFO: to use Chemaxon tools on TARS:  
+        `#module load /pasteur/projets/policy01/IPPI-DB/sources/iPPIDB/ippidb_module/0.1`
+- **ippidb_targetbased_binaries**
+    - python scripts for the tarbased based ippidb approach 
+    - galaxy directory with the XMLs for the python scripts + gromacs protonation tools + IChem Volsite XML (not fonctional yet)
+- **ippisite** (HM, and RT don't hesitate to fill this description)
+    - django web interface for ippidb
+    - front-end web interface