Update README to correct Metube description and add missing services

[jackspiering]

Pull Request Title: Update README to correct Metube description and add missing services

Description

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Related Issues

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Type of Change

• Bug fix
• New feature
• Documentation update
• Refactoring

How Has This Been Tested?

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Checklist

• I have performed a self-review of my code
• I have added tests that prove my fix or feature works
• I have updated necessary documentation (e.g. frontpage README.md)
• Any dependent changes have been merged and published in downstream modules

Screenshots (if applicable)

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Additional Notes

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