When typing text into a multiline rich text field, I want to put some hyperlinks in.
How do I do that?
You need to proceed in two steps:
1/ Enter the URL: http://... SharePoint will automatically convert it into a hyperlink. It will change the look to blue underlined text.
2/ Select the whole URL and overwrite it with your own description. SharePoint will keep the underlying URL and you'll get your final hyperlink.