Update index

cards.md

@@ -96,6 +96,7 @@ order: -1
 	<div class="index-box noborderbox" id="lab-equipment-card">
 		<h3>Lab: Equipment</h3>
 		<ul>
+			<li><a href="{{ 'external/lab-equipment/cryostorage' | relative_url }}">Utilization of the cryostorage</a></li>
 			<li><a href="{{ 'external/lab-equipment/dishwasher-utilization-and-maintenance' | relative_url }}">Dishwasher utilization and maintenance</a></li>
 			<li><a href="{{ 'external/lab-equipment/hoods' | relative_url }}">Laminar Flow - Fume Hood - Biosafety Cabinet: what are the differences and when to use them?</a></li>
 			<li><a href="{{ 'external/lab-equipment/maintenance-of-fridges' | relative_url }}">Maintenance of fridges and freezers</a></li>