HOW to add web url in Mylot profile ? thank you ,dear !

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Dear friend,i just meet with troules, perhaps i know more enough about features on Mylot ,when i want to add some web url in my profile i fail. i have make the process like this ,yet .. fisrt click "edit profile" to enter into the page ,there i click "add content",and then i add the "HTML" checkmark.when i lay the url there it don't work well .. time and time again .it have even drive me crazy . so ,dear bothers ,sisters ,could you come to my help ? please.thank you !