kpt function catalog docs should include `config.kubernetes.io/local-config: "true"` annotation wherever function config is referred.

[droot]

kpt treats functionConfigs like any other resource. FunctionConfigs need to be marked loca-config so that they are not applied to cluster.

kpt function catalog docs (and examples) should include config.kubernetes.io/local-config: "true" annotation wherever function config is referred.

metadata:  
  annotations:
    config.kubernetes.io/local-config: "true"