Handy-test-cases.md

@@ -6,7 +6,8 @@ Let us illustrate the structure of the executable python files with a two dimens
 
 Some steps have to be followed in order to properly define the application you want to solve with the MigFlow Software.
 
-1. Set the problem parametres
+1. Set the problem parametres.
+
   In an application, many variables are required to define : 
   * [fluid and grains properties](https://git.immc.ucl.ac.be/fluidparticles/migflow/blob/oneFluid/testcases/depot-2d/depot.py#L69)
 ```python