Update docs/user-guide/developer-content/inspiration-showcase/showcase.qmd

Co-authored-by: Erik van Sebille <erikvansebille@gmail.com>

Author: j-atkins

docs/user-guide/developer-content/inspiration-showcase/showcase.qmd

@@ -118,7 +118,7 @@ graph G {
     </span>
     - Lagrangian trajectory framework
     - Instruments have behaviours via customisable, extensible `kernels`
-    - VirtualShip = `kernel`s + configuration + digital ocean
+    - VirtualShip = `kernels` + configuration + digital ocean
 
     <!-- <br> -->