Merge pull request ripienaar#3455 from pnzrr/master

Add Phase Two as a free offering.

Author: ripienaar

README.md

@@ -712,6 +712,7 @@ This list results from Pull Requests, reviews, ideas, and work done by 1600+ peo
   * [Okta](https://developer.okta.com/signup/) — User management, authentication and authorization. Free for up to 100 monthly active users.
   * [onelogin.com](https://www.onelogin.com/) — Identity as a Service (IDaaS), Single Sign-On Identity Provider, Cloud SSO IdP, three company apps, and five personal apps, unlimited users
   * [Ory](https://ory.sh/) - AuthN/AuthZ/OAuth2.0/Zero Trust managed security platform. Forever free developer accounts with all security features, unlimited team members, 200 daily active users, and 25k/mo permission checks.
+  * [Phase Two](https://phasetwo.io) - Keycloak Open Source Identity and Access Management. Free realm up to 1000 users, up to 10 SSO connections, leveraging Phase Two's Keycloak enhanced container which includes the [Organization](https://phasetwo.io/product/organizations/) extension.
   * [Stytch](https://www.stytch.com/) - Flexible authentication APIs and SDKs with reach-resistant passwords, passwordless login flows, MFA, SSO, and more. Email/SMS sending + failover and fraud protections built-in. Offers 5,000 Monthly Active Users free (B2C) or 1,000 Monthly Active Users and 25 Organizations free (B2B).
   * [Stack Auth](https://stack-auth.com) — Open-source authentication that doesn't suck. The most developer-friendly solution, getting you started in just five minutes. Self-hostable for free, or offers a managed SaaS version with 10k free Monthly Active Users.
   * [SuperTokens](https://supertokens.com/) - Open source user authentication that natively integrates into your app - enabling you to get started quickly while controlling the user and developer experience. Free for up to 5000 MAUs.