Update refcard.tex

Fix #2

refcard.tex

@@ -251,7 +251,7 @@ \section*{Structures de contrôle}
 for animal in ["chat", "chien", "oiseau"]:
     print(f"Un {animal} est un mammifère")
 
-for i in range(4): print(i, end=" ") # 0 1 2 3 4
+for i in range(4): print(i, end=" ") # 0 1 2 3
 for i in range(4, 8): print(i, end=" ") # 4 5 6 7
 for i in range(0, 10, 2): print(i, end=" ") # 0 2 4 6 8