Update OpenWRT instructions in readme-vars.yml

[dezeroku]

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• I have read the contributing guideline and understand that I have made the correct modifications

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Description:

Update the OpenWRT setup instructions, so not only the last dhcp-boot/dhcp-match pair is applied.

Benefits of this PR and context:

Resolves #62

How Has This Been Tested?

Works fine in my OpenWRT setup, booting from a VM and a "physical" device.

Source / References:

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https://ci-tests.linuxserver.io/lspipepr/netbootxyz/0.7.0-pkg-4d113da0-dev-2cf6287e98bb93c97c21b198eadbb9d0ed1dd636-pr-63/shellcheck-result.xml

Tag	Passed
amd64-0.7.0-pkg-4d113da0-dev-2cf6287e98bb93c97c21b198eadbb9d0ed1dd636-pr-63	✅
arm64v8-0.7.0-pkg-4d113da0-dev-2cf6287e98bb93c97c21b198eadbb9d0ed1dd636-pr-63	✅

[drizuid]

if we're not going to use uci, may as well delete the section and list wrt along with the other dnsmasq section since it's just a repeat

[dezeroku]

Good call, I'll change it.

Do you think it's a good idea to add a pointer that dnsmasq service likely needs to be restarted for the changes to take effect? I'd expect this to be true for most systems, not only OpenWRT

[drizuid]

Good call, I'll change it.

Do you think it's a good idea to add a pointer that dnsmasq service likely needs to be restarted for the changes to take effect? I'd expect this to be true for most systems, not only OpenWRT

yes, the restart is definitely a good call and will complement the section nicely

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https://ci-tests.linuxserver.io/lspipepr/netbootxyz/0.7.0-pkg-4d113da0-dev-6bf5dd43e924f812ba9d064b3916861416373d47-pr-63/shellcheck-result.xml

Tag	Passed
amd64-0.7.0-pkg-4d113da0-dev-6bf5dd43e924f812ba9d064b3916861416373d47-pr-63	✅
arm64v8-0.7.0-pkg-4d113da0-dev-6bf5dd43e924f812ba9d064b3916861416373d47-pr-63	✅

[drizuid]

you were going to keep the note regarding dnsmasq restart, right? I would not put /etc/init.d/dnsmasq restart, but rather something along the lines of "Ensure you restart your DNSMASQ service after the changes."

[dezeroku]

Yup, I wanted to wait for your comment and didn't see it earlier, sorry about that. Added the note now

[LinuxServer-CI]

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https://ci-tests.linuxserver.io/lspipepr/netbootxyz/0.7.0-pkg-4d113da0-dev-87ace2895ad015ed5d2c87cdaffa3ef1f86d6471-pr-63/shellcheck-result.xml

Tag	Passed
amd64-0.7.0-pkg-4d113da0-dev-87ace2895ad015ed5d2c87cdaffa3ef1f86d6471-pr-63	✅
arm64v8-0.7.0-pkg-4d113da0-dev-87ace2895ad015ed5d2c87cdaffa3ef1f86d6471-pr-63	✅