You can turn any text or image into a link to another page.
Turning text into a link
Highlight the text you want to turn into a link and then click the 'Insert/edit link' button.
Type (or paste) the URL (website address) of the page you want to link to into the 'Source' field.
Turning an image into a link
Follow the same steps, but instead of highlighting text, just click on the image first to select it.