chore: add OpenIddict project

README.md

@@ -50,6 +50,7 @@
 - [Gravitee.io](https://www.gravitee.io/platform/access-management) - Open Source OpenID Connect/OAuth 2.0 provider aims to be a bridge between applications and identity providers to authenticate, authorize and getting information about user accounts.
 - [LoginRadius](https://www.loginradius.com/) - A SaaS CIAM that can act as an OpenID Connect provider.
 - [Okta](https://www.okta.com/) - Extensible solution that enables both customer and workforce identity with federation, single sign-on, API security and workflows for both cloud and on-prem solutions.
+- [OpenIddict](https://github.com/openiddict/openiddict-core) - .NET Open Source OpenID Connect Provider implementation with ASP.NET Core 2.1 (and higher) applications support.
 - [OneLogin](https://www.onelogin.com/) - SaaS Employee and Customer IAM solution with OpenID Connect Provider capabilities.
 - [Ory Hydra](https://github.com/ory/hydra) - Open Source OpenID Certified™ OpenID Connect and OAuth Provider.
 - [Microsoft Entra ID](https://www.microsoft.com/en-us/security/business/solutions/identity-access) - Software component developed by Microsoft providing single sign-on access to systems and applications.