Update README.md

README.md

@@ -22,6 +22,8 @@ and then in your *view class*, you have a component you want to pass the image t
 
 ```Java
 ImageView img = //You either create new or find from layout
-int drawableResId = DinnerPlannerApplication.getDrawable(view,"drawable_name_without_extension");
+int drawableResId = DinnerPlannerApplication.getDrawable(view.getContext(),"drawable_name_without_extension");
 img.setImageResource(drawableResId);
 ```
+
+*Note:* be sure to not have extension in the drawable name. If you are using the `getImage()` from the [DinnerModel](https://github.com/kth-csc-iprog/dinnerplanner-android/tree/master/src/se/kth/csc/iprog/dinnerplanner/model) this will give you the image name with `.jpg` extension. So either modify the model, or be sure to remove the extension before you pass it to the `getDrawable()` method.