adds to README.

Author: wlongmireBloomTech

README.md

@@ -42,7 +42,7 @@ Get the project fired up and start using it as a user would. Try to go through t
 * [ ] Test that the Show component renders when your test data is passed in through show prop and "none" is passed in through selectedSeason prop.
 * [ ] Test that the Loading component displays when null is passed into the show prop (look at the Loading component to see how to test for it's existence)
 * [ ] Test that when your test data is passed through the show prop, the same number of season select options appear as there are seasons within your test data.
-* [ ] Test that when an item is selected, the handleSelect function is called. Look at your code to see how to get access to the select DOM element and userEvent reference materials to see how to trigger a selection.
+* [ ] Test that when an item is selected, the handleSelect function is called. Look at your code to see how to get access to the select DOM element and [userEvent reference materials](https://testing-library.com/docs/ecosystem-user-event/) to see how to trigger a selection.
 * [ ] Test that the episode component DOES NOT render when the selectedSeason props is "none" and DOES render the episode component when the selectedSeason prop has a valid season index.
 
 ### The Display Component