You posted the links correctly except for the brackets you used [] to enclose the URL should have been these <>.
(I edited the change)
When you use the angle brackets <> to enclose the URL in your post, the brackets do not display, because they perform the function of desiginating the enclosed characters to be an HTML command, ...and the URL characters become an active link.
<HTML>It's the little "carrot" brackets that are on the period and comma (. & ,) keys at the lower right hand of a standard keyboard. Basically type "shift/comma" before the link and "shift/period" after the link, to make it a live/clickable link. Annoying that it isn't possible to get these "carrot" brackets to display for illustration purposes. Actually, a self-described "computer geek" told me a trick, but I can't remember the details.