Update Readme

MY_RUN/KTEST/013_Iroise_OASIS_coupling/Readme

-=====================================================
-===== Readme for 013_Iroise_OASIS_coupling
-=====================================================
+# Readme for 013_Iroise_OASIS_coupling
 
-The automatic compilation of Meso-NH was developed with
-gfortran/openMPI.
+The automatic compilation of Meso-NH was developed with gfortran/openMPI.
 
-Adaptation of the Makefile for OASIS is required
-if you want to use another compiler.
+Adaptation of the Makefile for OASIS is required if you want to use another compiler.
 
------------------------------------------------------
-1. Configure Meso-NH
------------------------------------------------------
+## Configure Meso-NH
 
+```bash
 export VER_MPI=MPIAUTO
 export VER_CDF=CDFAUTO
 export VER_OASIS=OASISAUTO
 ./configure
 . ../conf/profile_mesonh
+```
 
------------------------------------------------------
-2. Compile Meso-NH
------------------------------------------------------
+## Compile Meso-NH
 
+```bash
 make
 make installmaster  
+```
 
------------------------------------------------------
-3. Launch the coupling run
------------------------------------------------------
+# Launch the coupling run
 
-Before launching the coupling run, you have to define
-the environnment variable PREP_PGD_FILES.
-It corresponds to the directory where the files
-needed by the PGD program (ECOCLIMAP, gtopo30, SAND*, CLAY*)
-are stored. You can download these files at this location:
-http://mesonh.aero.obs-mip.fr/mesonh52/Download
+Before launching the coupling run, you have to define the environnment variable PREP_PGD_FILES.
+It corresponds to the directory where the files needed by the PGD program (ECOCLIMAP, gtopo30, SAND*, CLAY*)
+are stored. You can download these files at this location: http://mesonh.aero.obs-mip.fr/mesonh52/Download
 
-The toy model need the etopo2.nc file, you can download it there:
-http://mesonh.aero.obs-mip.fr/mesonh49/Download
+The toy model need the etopo2.nc file, you can download it there: http://mesonh.aero.obs-mip.fr/mesonh49/Download
 You have to put this file at the same location as the pgd files.
 
 Define the PREP_PGD_FILES environnment variable:
+```bash
 export PREP_PGD_FILES=/full/path/of/your/files/directory
+```
 
 Then go to the coupling ktest:
+```bash
 cd MY_RUN/KTEST/013_Iroise_OASIS_coupling/
+```
 
 and launch the coupling KTEST:
+```bash
 ./run_013_Iroise_OASIS_coupling
+```