anchor.diff:  .Example: Downgrade an installed resource
   [source,terminal]
   ----
  -$ tkn hub downgrade task \
  -> --context $(kubectl config current-context) \
  -> --kubeconfig $HOME/.kube/config \
  -> --namespace $NAMESPACE \
  -> --to <resourceVersion>
  +$ tkn hub downgrade task -n mynamespace --to <resourceVersion>
   ----
   
   == hub get
  
positive.code: .Example: Search a resource
  [source,terminal]
  ----
  $ tkn hub search \
  > --tags cli \
  > --match [contains | exact] \
  > --output [table | json]
  ----
  
  == hub upgrade
  
negative.code: .Example: Upgrade an installed resource
  [source,terminal]
  ----
  $ tkn hub upgrade task -n mynamespace --to <resourceVersion>
  ----
  