If you’re using the HTML editor, simply type this:
<a href=""> </a>
Whatever you put between the quotes will be the website you’re linking to, whatever goes between the ><
will be what displays. Here’s an example:
<a href="https://www.google.com/">Google</a>
This will show as Google
If you’re using the visual editor, simple hit the round link button, insert the URL you’re linking to, type the word you want to be clickable, then hit the link button again.