converse.js/docs/source/_templates/sponsors.html

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<h4 class="sidebar-title">Sponsored by</h4>
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    <li><a href="https://blokt.com/?utm_source=conversejs" target="_blank" rel="noopener">
            <img style="width: 9em" src="/logo/blokt.png" alt="Blokt Crypto & Privacy">
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