Description of problem:

oc explain <resource> generally list down possible supported fields which i see blank in case of tekton resources. Should we add it .

$ oc explain pipelineruns
KIND: PipelineRun
VERSION: tekton.dev/v1beta1

DESCRIPTION:
<empty>

Version-Release number of selected component (if applicable):

4.12
How reproducible:
always

Steps to Reproduce:
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Actual results:

Expected results:

Additional info: