All you need is to replace the left bracket with < or <
You will probably prefer the former. I got into the habit of using < on a forum where that was the only alternative that worked.
You can, if I understood what you were trying to do. But it is easier to either post working code or visible code. Combinations can be confusing. Wouldn't have dared to try this without a preview function.
Sure you can get a live link, but what you are posting is not a complete link. As Corwings said, to get the HTML to display in the forum, you need to replace the left bracket with <. A link to your site might then be shown as:
But fixing the code so it can display, disables it. All it is is text. If you actually want to put a live link in your posting, don't replace the left bracket. Just type in the proper HTML. Without the replacement of the left bracket, in the code above, you have: