Update README.md

README.md

 # Counts simulations  & DESEQ2 investigations
 
 Purpose: 
-    1) Understand how DESEQ2 works
-    2) Understand how maximize statistical power 
-    2) Refined biological protocol (seqeuncing effort, ...)
+    1) Understand how DESEQ2 works <br/>;
+    2) Understand how maximize statistical power <br/>;
+    2) Refined biological protocol (seqeuncing effort, ...) <br/>;
 
 
 ## About DESEQ2