Provide more information on each dependency

README.md

@@ -21,14 +21,15 @@ C:\>set https_proxy=http://vip-users.proxy.edf.fr:3131
 ## Building and installing TELEMAC-MASCARET dependencies
 
 TELEMAC-MASCARET can be built with or without several dependencies, which are listed below:
-- MED (requires HDF5)
-- METIS
-- MPI
-- MUMPS (additionally requires):
+- MED (requires HDF5): add support for the MED file format.
+- MPI: enable runtime parallelism, using the latest implementation of Microsoft MPI. Also requires:
+    - METIS: used for partioning the mesh during a parallel run.
+- MUMPS: parallel direct solver which is only used by ARTEMIS. Also requires:
+    - MPI
     - OpenBLAS (includes LAPACK)
     - ScaLAPACK
-- AED2
-- GOTM
+- AED2: activate more processes in WAQTEL.
+- GOTM: allow the use of the General Ocean Turbulence Model in TELEMAC-3D.
 
 These dependencies can be installed using the provided `build-telemac-deps.bat` script, as follows:
 ```