Add documentation for loading e2e tests without using minikube

[jeffistyping]

Use Kind to build the e2e test image and subsequently run the tests

What this PR does / why we need it:

The current documentation builds the e2e tests in a minikube context, but will be problematic if the environment wasn't set up with minikube.

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)
• Documentation change

How Has This Been Tested?

Documentation changes, no tests

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I've read the CONTRIBUTION guide

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[jeffistyping]

/assign @ElvinEfendi

[ElvinEfendi]

@jeffrey-hui thanks for the PR. I think we should remove any mention of minikube in that doc and suggest to use kind-e2e-test command instead.

[aledbf]

/ok-to-test

[ElvinEfendi]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ElvinEfendi, jeffrey-hui

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