Update app.py

app.py

@@ -67,6 +67,7 @@ def predict_and_plot(week4, week3, week2, week1):
     
     plt.figure(figsize=(10, 6))
     plt.plot(weeks, actual_values, marker='o', label='Total Kilometers')
+    plt.set_ylim(bottom=0)
     plt.axvline(x='Predicted Week', color='red', linestyle='--', label='Predicted Week')
     plt.title('Total Kilometers for Last 4 Weeks and Prediction')
     plt.xlabel('Weeks')