Example should use 120s for timeout

[j16sdiz]

What this PR does / why we need it:

Document Update
The text reads "there is an initial delay of up to two minutes", but the example timeout after 90s. Two value should be aligned.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Which issue/s this PR fixes

How Has This Been Tested?

Nil, this is document only change.

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I've read the CONTRIBUTION guide
• I have added tests to cover my changes.
• All new and existing tests passed.

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[k8s-ci-robot]

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[k8s-ci-robot]

Hi @j16sdiz. Thanks for your PR.

I'm waiting for a kubernetes 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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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: j16sdiz
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[aledbf]

/ok-to-test

[aledbf]

@j16sdiz please sign the CLA

[k8s-ci-robot]

@j16sdiz: The following tests failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
pull-ingress-nginx-boilerplate	f8ad5c8	link	/test pull-ingress-nginx-boilerplate
pull-ingress-nginx-codegen	f8ad5c8	link	/test pull-ingress-nginx-codegen

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.