Translations:Help:VisualEditor/User guide/29/en

If you select (highlight) text or place your cursor within a word, and then press the "$annotation" button, a link will be inserted using that text or word. In most cases, when creating internal links (links to other pages in the same wiki) you do not select text. But when creating external links, in most cases you do select text before starting the linking process, and text is probably something you just typed.