Hi quinie, to post a link do this.
You see the address box that says www.answerbank etc (or whatever the link is that you want to give)
move your cursor over that address, and give it one LEFT click, of your mouse,
it will highlight the address in BLUE.
Keep your cursor over that blue line and give it one RIGHT click of your mouse.
A box of options comes up, go to COPY, and do one LEFT click,
the address of the link is then held on your mouse, left click on POST AN ANSWER, in answerbank (as usual) to post your answer and link.
Click once on a RIGHT click, and from the options, give it one LEFT click on PASTE. That will paste the link for you into the answer box.
Sounds complicated, but once you've done it, it is very easy.
Write the instructions down and try it, you can post one to me if you like.
I didn't know how to do it either at one time.