update config with note for full list of support configs

[drizuid]

closes #45

[LinuxServer-CI]

I am a bot, here are the test results for this PR:
https://ci-tests.linuxserver.io/lspipepr/cops/2.2.1-pkg-4c76ddbe-dev-1cc89119fd5ef98b1115ab7671f08866fb2f8857-pr-48/index.html
https://ci-tests.linuxserver.io/lspipepr/cops/2.2.1-pkg-4c76ddbe-dev-1cc89119fd5ef98b1115ab7671f08866fb2f8857-pr-48/shellcheck-result.xml

Tag	Passed
amd64-2.2.1-pkg-4c76ddbe-dev-1cc89119fd5ef98b1115ab7671f08866fb2f8857-pr-48	✅
arm64v8-2.2.1-pkg-4c76ddbe-dev-1cc89119fd5ef98b1115ab7671f08866fb2f8857-pr-48	✅

[mikespub]

Hi @drizuid since this is a PHP file that will be included, and we want to avoid sending any blank spaces or new lines by mistake, could you please insert the comment after the first 3 lines:

<?php
    if (!isset($config))
        $config = array();

Thanks

[drizuid]

oops, i should've caught that :D my bad. That is what i get for doing a PR from the phone!
LMK if this looks good now.

[LinuxServer-CI]

I am a bot, here are the test results for this PR:
https://ci-tests.linuxserver.io/lspipepr/cops/2.2.1-pkg-4c76ddbe-dev-97b93753c3453432739674de54284c68da346839-pr-48/index.html
https://ci-tests.linuxserver.io/lspipepr/cops/2.2.1-pkg-4c76ddbe-dev-97b93753c3453432739674de54284c68da346839-pr-48/shellcheck-result.xml

Tag	Passed
amd64-2.2.1-pkg-4c76ddbe-dev-97b93753c3453432739674de54284c68da346839-pr-48	✅
arm64v8-2.2.1-pkg-4c76ddbe-dev-97b93753c3453432739674de54284c68da346839-pr-48	✅

[mikespub]

hi @drizuid you're good to go. For some reason Github won't let me approve my own review