update poc image and test (#7)

README.md

@@ -15,7 +15,7 @@ This application is a basic [create-react-app](https://github.com/facebook/creat
 7. Confirm that the Haveno daemon version is displayed (1.6.2)
 
 <p align="center">
-    <img src="haveno-ui-poc.png" width="400" height="400"/><br>
+    <img src="haveno-ui-poc.png" width="500"/><br>
 </p>
 
 ## How to Update the Protobuf Client

src/App.test.tsx

@@ -4,6 +4,6 @@ import App from './App';
 
 test('renders learn react link', () => {
   render(<App />);
-  const linkElement = screen.getByText(/learn react/i);
+  const linkElement = screen.getByText(/learn more/i);
   expect(linkElement).toBeInTheDocument();
 });