Fix wrong JSON bool value in a imagestream trigger example annotation

JSON boolean type can be true/false, not "true"/"false", replace "false" with false. This wrong example causes an error to convert JSON data type in "openshift-controller" pod of "openshift-controller-manager" project, it also ignores image triger events.

Author: bysnupy

modules/images-triggering-updates-imagestream-changes-kubernetes-about.adoc

@@ -22,7 +22,7 @@ Value:
      "namespace": "myapp" <3>
    },
    "fieldPath": "spec.template.spec.containers[?(@.name==\"web\")].image", <4>
-   "paused": "false" <5>
+   "paused": false <5>
  },
  ...
 ]