try, like:
```html
<nav class="navbar fixed-bottom">
  <div class="row justify-content-center"><div class="col-8">
<b>Disclaimer:</b> The above information is calculated based on best effort and data we have available. The information might not reflect physical reality. If you have questions about your order <a href="https://www.crowdsupply.com/contact">contact CrowdSupply</a>.</div></div>
<div class="row justify-content-center"><div class="col-8"><b>Contact:</b> If you have technical suggestions feel free to open an issue on the tracker <a href="https://github.com/esden/glasgow-cs-analytics">GitHub page</a>. If you have other questions you can ask through the regular <a href="http://glasgow-embedded.org/latest/community.html">Glasgow Community channels</a>.</div></div>
<div class="row justify-content-center"><div class="col-8">This tracker was brought to you by <a href="https://chaos.social/@esden">Piotr Esden-Tempski</a>.</div></div>
 </div>
</nav>
```