Pipelines 1.0 support tkn version 0.9. 

Pipelines 1.1 supports tkn version 0.11 ( Please confirm with Piyush before starting documentation )

As part of this Jira delta between 0.9 and 0.11 needs to be documented. 

Affected Doc pages: tkn CLI reference 

Upstream Release Notes - https://github.com/tektoncd/cli/releases