Update app.py

app.py

@@ -51,6 +51,8 @@ def plot_curve(kn, kd):
     fig = plt.figure()
     plt.plot(kns, overheads, color="black")
     plt.scatter([kn], [compute_overhead(kn, kd)*100], marker="x", c="red", label="You are here!")
+    plt.scatter([1.0], [100.0], marker="x", c="blue", label="Chinchilla optimal")
+    plt.grid(True)
     plt.xlabel("Fraction of compute optimal model size")
     plt.ylabel("Compute overhead (%)")
     plt.legend(loc="best")