Update README.md

README.md

@@ -66,12 +66,13 @@ General description of python runs:
       * $`t_{end}`$   : time stop
 1.    Initialisation of the fluid/grains structures
 1.    Boudary conditions :  
-
-           Ex: strong_boundaries = [("Top",2,0.),("Top",1,0.),("Top",0,0.),("Box",1,0.),("Box",0,0.)]  
-           
+      args (tuple):
       + Boundary name
       + Field to impose (0: u, 1: v, 2: p)
       + Value of the field
+
+           Ex: strong_boundaries = [("Top",2,0.),("Top",1,0.),("Top",0,0.),("Box",1,0.),("Box",0,0.)]  
+           
 1.    Resolution loop