Update completion.md with fish shell instructions

davidxia · web-flow · commit c4b1674836c6 · 2023-05-13T09:07:17.000-04:00
diff --git a/docs/book/src/reference/completion.md b/docs/book/src/reference/completion.md
@@ -35,3 +35,10 @@ fi
 Follow a similar protocol for `zsh` completion.
 
 </aside>
+
+<aside class="note">
+<h1>Fish</h1>
+
+source (kubebuilder completion fish | psub)
+
+</aside>
