docs(readme): update features (#5676)

* docs(readme): update features

- add LDAP
- structure and update features

* Apply suggestions from code review

Co-authored-by: Florian Forster <florian@zitadel.com>

---------

Co-authored-by: Florian Forster <florian@zitadel.com>

README.md

@@ -35,7 +35,7 @@ Do you have project that requires a multi-tenant user management with self-servi
 Look no further — ZITADEL combines the ease of Auth0 with the versatility of Keycloak.
 
 We provide you with a wide range of out of the box features to accelerate your project.
-Multi-tenancy with branding customization, secure login, self-service, OpenID Connect, OAuth2.x, SAML2, Passwordless with FIDO2 (including Passkeys), OTP, U2F, and an unlimited audit trail is there for you, ready to use.
+Multi-tenancy with branding customization, secure login, self-service, OpenID Connect, OAuth2.x, SAML2, LDAP, Passwordless with FIDO2 (including Passkeys), OTP, U2F, and an unlimited audit trail is there for you, ready to use.
 
 With ZITADEL you can rely on a hardened and extensible turnkey solution to solve all of your authentication and authorization needs.
 
@@ -90,20 +90,34 @@ Yet it offers everything you need for a customer identity ([CIAM](https://zitade
 
 ## Features
 
+Authentication
 - Single Sign On (SSO)
 - Passwordless with FIDO2 support (Including Passkeys)
 - Username / Password
-- Multifactor authentication with OTP, U2F
-- [Identity Brokering](https://zitadel.com/docs/guides/integrate/identity-brokering)
-- [Machine-to-machine (JWT profile)](https://zitadel.com/docs/guides/integrate/serviceusers)
-- Personal Access Tokens (PAT)
-- Role Based Access Control (RBAC)
-- [Delegate role management to third-parties](https://zitadel.com/docs/guides/manage/console/projects)
-- [Self-registration](https://zitadel.com/docs/concepts/features/selfservice#registration) including verification
-- [Self-service](https://zitadel.com/docs/concepts/features/selfservice) for end-users, business customers, and administrators
+- Multifactor authentication with OTP, U2F, SMS
+- LDAP
 - [OpenID Connect certified](https://openid.net/certification/#OPs) => [OIDC Endpoints](https://zitadel.com/docs/apis/openidoauth/endpoints)
 - [SAML 2.0](http://docs.oasis-open.org/security/saml/Post2.0/sstc-saml-tech-overview-2.0.html) => [SAML Endpoints](https://zitadel.com/docs/apis/saml/endpoints)
+- [Machine-to-machine](https://zitadel.com/docs/guides/integrate/serviceusers) with JWT profile, Personal Access Tokens (PAT), and Client Credentials
+
+Multi-Tenancy
+- [Identity Brokering](https://zitadel.com/docs/guides/integrate/identity-brokering) with templates for popular identity providers
+- [Delegate role management to third-parties](https://zitadel.com/docs/guides/manage/console/projects)
+- Domain discovery
+
+Integration
+- [GRPC and REST APIs](https://zitadel.com/docs/apis/introduction)
+- [Actions](https://zitadel.com/docs/apis/actions/introduction) to call any API, send webhooks, adjust workflows, or customize tokens
+- Role Based Access Control (RBAC)
+
+Self-Service
+- [Self-registration](https://zitadel.com/docs/concepts/features/selfservice#registration) including verification
+- [Self-service](https://zitadel.com/docs/concepts/features/selfservice) for end-users, business customers, and administrators
+- [Administration UI (Console)](https://zitadel.com/docs/guides/manage/console/overview)
+
+Deployment
 - [Postgres](https://zitadel.com/docs/self-hosting/manage/database#postgres) (version >= 14) or [CockroachDB](https://zitadel.com/docs/self-hosting/manage/database#cockroach) (version >= 22.0)
+- [Zero Downtime Updates](https://zitadel.com/docs/concepts/architecture/solution#zero-downtime-updates)
 
 Track upcoming features on our [roadmap](https://zitadel.com/roadmap).