modifs mise en page readme

README.md

@@ -3,20 +3,23 @@
 ### how to use :
 
 first launch server :
+
 ```
 ./server
 ```
-it will print a line with its own pid, and an empty line below
 
+it will print a line with its own pid, and an empty line below
 
 if you want to terminate the program hit `ctrl-c`
 
-
 then in another window launch the client, with two arguments :
+
 ```
 ./client [SERVER PID] [string]
 ```
+
 [SERVER PID] is the pid number printed by the server
+
 [string] is whatever you want to write, surrounded by `"` if you want to include spaces : `"a random phrase"`
 
 ### ressources