Renamed the mariadb, openldap and postgres database

roles/svc-db-postgres/README.md

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+# PostgreSQL
+
+## Description
+
+This Ansible role deploys and configures a PostgreSQL database in a Docker container using Docker Compose. It is designed to simplify database administration by automating the creation of networks, containers, and essential database tasks (such as database and user creation) for a secure and high-performance environment.
+
+## Overview
+
+Built for environments that demand reliability and ease of management, this role:
+- Sets up a dedicated Docker network for PostgreSQL.
+- Deploys a PostgreSQL container with secure configurations and automated healthchecks.
+- Automates tasks like database creation, user setup, and privilege assignments to streamline your workflows.
+
+## Purpose
+
+The purpose of this role is to provide an effortless way to deploy a PostgreSQL database via Docker. It minimizes manual interventions while ensuring that your database is configured securely and reliably for both production and development scenarios.
+
+## Features
+
+- **Automated Deployment:** Installs PostgreSQL with minimal manual steps.
+- **Robust Administration:** Automatically creates databases, users, and assigns privileges.
+- **Enhanced Security:** The service is bound to `127.0.0.1:5432`, restricting access and enhancing security.
+- **Seamless Docker Integration:** Works harmoniously with Docker Compose and other roles in your infrastructure.
+
+## Credits 📝
+
+Developed by **Kevin Veen-Birkenbach**.  
+Discover more at [www.veen.world](https://www.veen.world)  
+Part of the [CyMaIS Project](https://github.com/kevinveenbirkenbach/cymais)  
+License: [CyMaIS NonCommercial License (CNCL)](https://s.veen.world/cncl)