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To expand on what invenio said, what link are you trying to add? There might be an extension available that automatically adds the link for you (KB, Rules, etc).
If you have any questions about the rules/customs of this website, feel free to send me a PM. My little corner of the world, where I sometimes post things documented from my job.
I would suggest the OP take a look at the extension LMDI Multilinks
Normal people… believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet. – Scott Adams