Add the web address for the second link.

<body><h1>Official documents</h1><p><a href="https://getmimo.com/r/bubu" target="_blank">Article 38</a><br><a href="https://getmimo.com/r/sparkles" target="_blank">Tax law 2019</a></p></body>
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Make sure to pick href followed by = and then ", https://mimo.app/r/sparkles, ".