Put the URL of your link between the quotes, your description where it says 'Description', and change the capital A's at the beginning and end to lower case a's.
You asked this question before so here's your original thread plus a couple of others.. you can't get any easier ways than what was already shown to you on your thread.
oh and you can find it here too this was copy and pasted directly from the FAQ..
How do I make links within my comments? If you'd like to make a hypertext link within a comment that you are going to post, you can use regular HTML code to do so. For example if I was to make a link to asdf.com, I'd write the following in my comment:
Go to asdf.com.
Note that you have to use the full form of the address including the "http" part.