Mise à jour du 02run.md

Doc/02run.md

 # Execution guide
 
-#Activate the Environment
-
+## Activate the Environment
+~~~
 micromamba activate m2bsgreprod
-
-#Use Apptainer to execute the make command inside the container and run the Makefile:
-
+~~~
+## Use Apptainer to execute the make command inside the container and run the Makefile:
+~~~
 apptainer exec results/containers/m2bsgreprod3.sif make -f workflows/makefile
+~~~