Merge pull request 'chore: added ipv6 documentation boilerplate' (#1) from tobitestet into main

Reviewed-on: #1
Reviewed-by: bert-jan <bert-jan@noreply.localhost>

README.md

@@ -11,3 +11,8 @@ This repository contains documentation, guides, and reference material.
   Documentation and guides related to Microsft Entra configuration and best practices.
   - [Enterprise App Integration with Keycloak](./ms-entra/enterprise-app-keycloak.md)  
     Step-by-step instructions for creating an Enterprise Application in Microsoft Entra (Azure AD) as an identity provider for Keycloak.
+
+- **[Infrastructure](./infrastructure/)**
+  Documentation and guides related to infrastructure configuration and best practices.
+  - [IPV6](./infrastructure/ipv6/ipv6.md)
+    Documentation of the ipv6 concept.