Update README.md

[katspaugh]

Update the deprecation notice.

[github-actions[bot]]

CLA Assistant Lite All Contributors have signed the CLA.

[github-actions[bot]]

ESLint Summary View Full Report

Annotations are provided inline on the Files Changed tab. You can also see all annotations that were generated on the annotations page.

Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: :white_check_mark: success
  • Annotations: 0 total

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^{Report generated by eslint-plus-action}

[coveralls]

Pull Request Test Coverage Report for Build 3711247842

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 41.869%

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Totals
Change from base Build 3655801605:	0.0%
Covered Lines:	4778
Relevant Lines:	10421

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💛 - Coveralls

[katspaugh]

The repo is already deprecated. We won't accept any PRs or issues.