fix redirect

external/lab-hsa/spill/spill.md

@@ -19,7 +19,7 @@ During the emergency phase (first phase) you have to ensure your and your collea
 Prevent aggravation if possible (recap flasks, shut down power or heat source).
 
 In case somebody has been exposed to chemicals (skin or mucosa) rinse with **Diphoterine** as soon as possible.
-To know more about the usage of Diphoterine, consult the dedicated card <a href="{{ '/lab-hsa/diphoterine/' | relative_url }}">here</a>.
+To know more about the usage of Diphoterine, consult [the dedicated how-to card]({{ '/?lab:diphoterine' | relative_url }}).
 
 In case of contact with biological reagents, rinse with water for 15min. You can use the eye shower of the lab/corridor.