Update readme

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README.md

@@ -9,24 +9,24 @@ Single-Sign-On (SSO) server with multiple factor authentication.
 ![logged in](docs/screenshots/login-nopassword.png)
 
 Authentication process supported:
-- OAuth2
-- OpenID Connect
+- [OAuth2](docs/OAUTH2.md)
+- [OpenID Connect](docs/OIDC.md)
 
 Allows users authentication via multiple factors:
 - Password
-- One-time password (TOTP/HOTP)
-- WebAuthn (Yubikey, Android devices)
-- One-time password sent via e-mail
-- TLS Certificate
-- External OAuth2/OIDC providers
+- [One-time password (TOTP/HOTP)](docs/OTP.md)
+- [WebAuthn (Yubikey, Android devices)](docs/WEBAUTHN.md)
+- [One-time password sent via e-mail](docs/EMAIL.md)
+- [TLS Certificate](docs/CERTIFICATE.md)
+- [External OAuth2/OIDC providers](docs/OAUTH2.md)
 - HTTP Backend service providing Basic Authentication
 
 Users and clients can be stored and managed from various backends:
-- Database
-- LDAP service
-- HTTP Backend service providing Basic Authentication
+- [Database](docs/USER_DATABASE.md)
+- [LDAP service](docs/USER_LDAP.md)
+- [HTTP Backend service providing Basic Authentication](docs/HTTP.md)
 
-New users can register a new account with the possibility to confirm their e-mail address or not. During the registration process, the new user may be expected to register their passwords, as well as other authentication factors:
+New users can [register a new account](docs/REGISTER.md) with the possibility to confirm their e-mail address or not. During the registration process, the new user may be expected to register their passwords, as well as other authentication factors:
 - One-time password (TOTP/HOTP)
 - WebAuthn (Yubikey, Android devices)
 - TLS Certificate
@@ -50,7 +50,7 @@ The backend API server is fully written in C and uses a small amount of resource
 
 Its plugin architecture makes it easy to add new modules or plugins, or modify existing ones with less risks to have unmaintainable code.
 
-Glewlwyd 2.4 [is released](https://github.com/babelouest/glewlwyd/releases/latest). Feel free to [install](docs/INSTALL.md) it, test it, use it, and [send feedback](https://github.com/babelouest/glewlwyd/issues) if you feel like it.
+Glewlwyd 2.5 [is released](https://github.com/babelouest/glewlwyd/releases/latest). Feel free to [install](docs/INSTALL.md) it, test it, use it, and [send feedback](https://github.com/babelouest/glewlwyd/issues) if you feel like it.
 
 ## Installation