Correct type in readme.

[heyitsbench]

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

---

Description:

Corrects a typo of flaged to flagged in the readme in the Usage section regarding parameters.

Benefits of this PR and context:

Correct spelling is good. :)

How Has This Been Tested?

Unnecessary.

Source / References:

https://word.tips/spelling/flagged-vs-flaged/

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[LinuxServer-CI]

I am a bot, here are the test results for this PR:
https://ci-tests.linuxserver.io/lspipepr/lidarr/2.14.5.4836-pkg-862cd60c-dev-f8bf8977e901f1ae314638583ba51fb7acaa3326-pr-122/index.html
https://ci-tests.linuxserver.io/lspipepr/lidarr/2.14.5.4836-pkg-862cd60c-dev-f8bf8977e901f1ae314638583ba51fb7acaa3326-pr-122/shellcheck-result.xml

Tag	Passed
amd64-2.14.5.4836-pkg-862cd60c-dev-f8bf8977e901f1ae314638583ba51fb7acaa3326-pr-122	✅
arm64v8-2.14.5.4836-pkg-862cd60c-dev-f8bf8977e901f1ae314638583ba51fb7acaa3326-pr-122	✅

[LinuxServer-CI]

I am a bot, here are the test results for this PR:
https://ci-tests.linuxserver.io/lspipepr/lidarr/3.0.1.4866-pkg-290bd580-dev-4fb6c5928a87fa1e36a20958885c7d4d9fed8f67-pr-122/index.html
https://ci-tests.linuxserver.io/lspipepr/lidarr/3.0.1.4866-pkg-290bd580-dev-4fb6c5928a87fa1e36a20958885c7d4d9fed8f67-pr-122/shellcheck-result.xml

Tag	Passed
amd64-3.0.1.4866-pkg-290bd580-dev-4fb6c5928a87fa1e36a20958885c7d4d9fed8f67-pr-122	✅
arm64v8-3.0.1.4866-pkg-290bd580-dev-4fb6c5928a87fa1e36a20958885c7d4d9fed8f67-pr-122	✅

[LinuxServer-CI]

I am a bot, here are the test results for this PR:
https://ci-tests.linuxserver.io/lspipepr/lidarr/3.1.0.4875-pkg-bcb30912-dev-e5d2643d6c2e36930360c51f9173cd911f7431a1-pr-122/index.html
https://ci-tests.linuxserver.io/lspipepr/lidarr/3.1.0.4875-pkg-bcb30912-dev-e5d2643d6c2e36930360c51f9173cd911f7431a1-pr-122/shellcheck-result.xml

Tag	Passed
amd64-3.1.0.4875-pkg-bcb30912-dev-e5d2643d6c2e36930360c51f9173cd911f7431a1-pr-122	✅
arm64v8-3.1.0.4875-pkg-bcb30912-dev-e5d2643d6c2e36930360c51f9173cd911f7431a1-pr-122	✅

[aptalca]

https://github.com/linuxserver/docker-lidarr/blob/master/.github/CONTRIBUTING.md#readme

[LinuxServer-CI]

I am a bot, here are the test results for this PR:
https://ci-tests.linuxserver.io/lspipepr/lidarr/3.1.0.4875-pkg-98768647-dev-24a8a678cb914dda3afabb8e2d807bb57cc92c38-pr-122/index.html
https://ci-tests.linuxserver.io/lspipepr/lidarr/3.1.0.4875-pkg-98768647-dev-24a8a678cb914dda3afabb8e2d807bb57cc92c38-pr-122/shellcheck-result.xml

Tag	Passed
amd64-3.1.0.4875-pkg-98768647-dev-24a8a678cb914dda3afabb8e2d807bb57cc92c38-pr-122	✅
arm64v8-3.1.0.4875-pkg-98768647-dev-24a8a678cb914dda3afabb8e2d807bb57cc92c38-pr-122	✅