Update content/en/docs/reference/labels-annotations-taints/_index.md

Co-authored-by: Tim Bannister <[email protected]>

Author: aritraghosh

content/en/docs/reference/labels-annotations-taints/_index.md

@@ -20,7 +20,7 @@ This document serves both as a reference to the values and as a coordination poi
 
 Type: Annotation
 
-Example: `apf.kubernetes.io/autoupdate-spec: true`
+Example: `apf.kubernetes.io/autoupdate-spec: "true"`
 
 Used on: [All APF configuration objects](/concepts/cluster-administration/flow-control/#defaults)