There are a couple of link types which you may add to an answer.
To add a URL link to an answer, follow these steps:
1. Select the desired text and then click on the "Link" icon in the toolbar.
You may also click on the link icon without selecting any text. In that case, you'd be adding a direct URL address.
2. In the link dialog, enter the target URL.
3. When finished, click on the "OK" button.
To learn about adding a link to an image, click here.
To learn about adding a link to a Nanorep answer, click here.
To learn about adding a direct link to a Nanorep article, click here.
To learn about presenting the link as a button click here.