Fix broken link to Getting Started

[sbose78]

Changes

The Getting Started link the readme is being fixed.

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[tekton-robot]

Hi @sbose78. Thanks for your PR.

I'm waiting for a tektoncd member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[dibyom]

/ok-to-test

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: savitaashture

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[dibyom]

/lgtm

[dibyom]

Will try to close and re-open this PR to get the EasyCLA to pass

[linux-foundation-easycla]

The committers are authorized under a signed CLA.

• ✅ Shoubhik Bose (7197996)

[sbose78]

CLA done!