fixed README.md

src/main/java/workshop/Controller.java

@@ -10,6 +10,8 @@ public class Controller {
 
     private boolean isDark = true;
 
+    // TODO: (Optional) Create initialize function and use it to set prices during runtime.
+
     @FXML
     private void buyBasic() {
         // TODO: Call showAlert() with a message indicating the user entered the payment gateway