Update App.js

Removed "- Test Change"  from the Navbar heading from testing the change to my git commit email.

src/App.js

@@ -22,7 +22,7 @@ function App() {
             </Nav>
         </Container>
       </Navbar>
-        <h1>React App - Test Change</h1>
+        <h1>React App</h1>
         </div>
       );
   }