Add important note about SSH authentication.

[wesleyvandermeer]

Add important note about Git-Clone ssh authentication.

Changes

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[tekton-robot]

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[linux-foundation-easycla[bot]]

• :x: - login: @wesleyvandermeer / name: Wesley van der Meer . The commit (4c92bbaf59087373142545650e4d1aeaafed3c09, 9a0f0ad3eb5fda817d8bf4cb39a189ce9d37a43f) is not authorized under a signed CLA. Please click here to be authorized. For further assistance with EasyCLA, please submit a support request ticket.

[wesleyvandermeer]

/retest

[tekton-robot]

@wesleyvandermeer: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to [this](https://github.com/tektoncd/website/pull/604#issuecomment-2105637454): >/retest Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.