Update README.md (#156)

* Update README.md

- [Admin reCaptcha v3](https://github.com/axilaris/admin-yourls-recaptcha-v3) - Protect Admin login with reCaptcha v3.

(other recaptcha plugins are v2 and didnt quite work. this plugin should help those who wants recaptcha v3)

- https://do.my - multi-domain URL shortener

also, included a link to our url shortener

* Update README.md

Keep only plugin

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Co-authored-by: ྅༻ Ǭɀħ ༄༆ཉ <ozh@ozh.org>

README.md

@@ -78,6 +78,7 @@ Jump to [0-9](#0-9) | [A](#a) | [B](#b) | [C](#c) | [D](#d) | [E](#e) | [F](#f)
 - [Admin Issue Diagnostic - A.I.D.](https://github.com/PopVeKind/admin_issue_diagnostic) - Collects YOURLS environmentals and formats a template to copy/paste into a YOURLS issue.
 - [Admin NoReCAPTCHA](https://github.com/amindeed/YOURLS-Admin-NoReCAPTCHA) - Protect logins with Google's No CAPTCHA reCAPTCHA (Google's ReCAPTCHA v2.0).
 - [Admin reCaptcha](https://github.com/armujahid/Admin-reCaptcha) - Spam protection for private YOURLS admin interface with reCaptcha.
+- [Admin reCaptcha v3](https://github.com/axilaris/admin-yourls-recaptcha-v3) - Protect Admin login with reCaptcha v3.
 - [Advanced Reserved URLs](https://github.com/josheby/yourls-advanced-reserved-urls) - Extends the reserved word functionality, blocking short URLs containing reserved words, even if mixed case or written in leetspeak.
 - [Allow Aliases](https://github.com/adigitalife/yourls-allow-aliases) - Allow YOURLS to work with alias hostnames for the server.
 - [Allow Forward Slashes in Short URLs](https://github.com/williambargent/YOURLS-Forward-Slash-In-Urls) - Just as the name says.