docs:added k3s wsl2 setup code snippet

[animeshdas2000]

Description

As per the documentation on https://jenkins-x.io/v3/admin/platforms/k3s/#vault it wasn't possible to set up vault in k3s on WSL2 hence breaking the setup process.

Fixes # (issue)
This issue was resolved by mentioning -p <PORT NUMBER>:<PORT NUMBER> instead of --net host.

Checklist:

• I have mentioned the appropriate type(scope), as referenced here in the commit message and PR title for the semantic checks to pass.
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• Any dependent changes have already been merged.

[jenkins-x-bot]

Hi @animeshdas2000. Thanks for your PR.

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[babadofar]

/ok-to-test

[jenkins-x-bot]

⭐ PR built and available in a preview jenkins-x-jx-docs-pr-3597 here

[ankitm123]

The standard script used to install k3s also does not work for WSL2 as it uses systemd (which is not present in WSL2), can you update that as well?

[animeshdas2000]

The standard script used to install k3s also does not work for WSL2 as it uses systemd (which is not present in WSL2), can you update that as well?

Sure,will add it

[jenkins-x-bot]

⭐ PR built and available in a preview jenkins-x-jx-docs-pr-3597 here

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

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[jenkins-x-bot]

⭐ PR built and available in a preview jenkins-x-jx-docs-pr-3597 here

[ankitm123]

Please rebase this PR with the latest main branch.