To get it to work, you need to copy and paste your URL ie

http://www.folknorthwest.co.uk/

into the "Link URL" box in the Make a link page. You can then either leave the "Link Text" box blank or else also paste your URL into the "Link Text" box.

Then click on "Create Link" and paste the whole lot that appears in the new screen into the reply box.

It should then look like this: http://www.folknorthwest.co.uk/

It's always a good idea to preview before you finally submit your message.