docs: fix image location

Author: Kent C. Dodds

README.md

@@ -26,7 +26,7 @@
 
 <div align="center">
 <a href="https://testingjavascript.com">
-<img width="500" alt="TestingJavaScript.com Learn the smart, efficient way to test any JavaScript application." src="https://raw.githubusercontent.com/kentcdodds/react-testing-library/master/other/testingjavascript.jpg" />
+<img width="500" alt="TestingJavaScript.com Learn the smart, efficient way to test any JavaScript application." src="https://raw.githubusercontent.com/kentcdodds/cypress-testing-library/master/other/testingjavascript.jpg" />
 </a>
 </div>