adapted readme to the new argument parsing

README.md

@@ -17,8 +17,10 @@ You can run GrAnnoT via the script main.py with the following arguments :
 The other options can be found if you run "main.py -h".
 
 It will output the following files :
+
 For the graph :
 - a GFF and a GAF file with the annotation of the graph
+
 For each target genome :
     - the GFF file with the annotation of the target genome
     - a text file with the details of the variations within the annotated regions