Adding stuff to your profile

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I thought I was fairly computer savvy. Apparently not, because I can't even figure out how to add a link to my Mylot profile. I have a few things I would like to add and I have the HTML code for them. I just can't figure out where to go from there. I went to my profile and clicked edit then clicked add HTML. After that I'm lost. Can anyone give me a little assistance? It would be greatly appreciated!