Update install documentation

[xclud]

Changes

Updated install documentation to reflect the interceptors in version v0.13.0

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Updated install documentation to reflect the interceptors in version v0.13.0

[tekton-robot]

Hi @xclud. Thanks for your PR.

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[jmcshane]

/ok-to-test

[dibyom]

/approve
/lgtm

[tekton-robot]

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