backend: Move Quarkus application out of directory as everything else…

… moved to the platform directory now

web_backend/README.md

@@ -1,3 +1,40 @@
-## Teamagochi Backend Architecture
+<!-- markdownlint-disable-file -->
+<div align="center">
+  <h1>Teamagochi Web-Backend</h1>
 
-![IMG20240415181928](https://github.com/smartuni/riot-po-2024/assets/102831965/df1e9e11-421d-417b-a237-67e6496f2918)
+The backend for the Teamgochi project, build with the [Quarkus](https://quarkus.io) Java Framework.<br /><br />
+<strong>[Explore the docs](https://github.com/smartuni/teamagochi/tree/main/web_backend)</strong>
+</div>
+
+<!-- ~~~~~~~~~~~~~~~~~~~ END OF HEADER ~~~~~~~~~~~~~~~~~~~ -->
+
+## Usage
+
+The development environment can be started by using the [Quarkus CLI](https://quarkus.io/guides/cli-tooling),
+the `mvnw.cmd` script (Windows) or the equivalent `./mvnw` (Linux).
+
+```shell
+quarkus dev
+
+# Maven
+./mvnw compile quarkus:dev
+mvnw.cmd compile quarkus:dev
+```
+
+Run `quarkus --help`, `./mvnw quarkus --help` or `mvnw.cmd quarkus --help` to display help and all available commands.
+Read more about the [development mode](https://quarkus.io/guides/maven-tooling#dev-mode) or
+about the [command line interface](https://quarkus.io/guides/cli-tooling) in general.
+
+## Extensions
+
+The following table contains all used [Quarkus Extensions](https://quarkus.io/extensions/)
+
+| Name                       | Links                                                                                                                                    | Why?                                                                               |
+|----------------------------|------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|
+| REST                       | [Docs](https://quarkus.io/guides/rest), [Info](https://quarkus.io/extensions/io.quarkus/quarkus-rest)                                    | Create and provide REST services                                                   |
+| REST Jackson               | [Docs](https://quarkus.io/guides/rest#json-serialisation), [Info](https://quarkus.io/extensions/io.quarkus/quarkus-rest-jackson/)        | Jackson serialization (JSON) support for REST extension                            |
+| REST Client                | [Docs](https://quarkus.io/guides/rest-client), [Info](https://quarkus.io/extensions/io.quarkus/quarkus-rest-client/)                     | Call REST services, support receiving Server-sent events (SSE)                     |
+| REST Client Jackson        | [Info](https://quarkus.io/extensions/io.quarkus/quarkus-rest-client-jackson/)                                                            | Jackson serialization (JSON) support for the REST Client                           |
+| Hibernate ORM with Panache | [Docs](https://quarkus.io/guides/hibernate-orm-panache), [Info](https://quarkus.io/extensions/io.quarkus/quarkus-hibernate-orm-panache/) | Domain model persistence for relational databases using the the repository pattern |
+| JDBC Driver - PostgreSQL   | [Docs](https://quarkus.io/guides/datasource), [Info](https://quarkus.io/extensions/io.quarkus/quarkus-jdbc-postgresql/)                  | Connect to the PostreSQL database via JDBC                                         |
+| JDBC Driver - H2           | [Docs](https://quarkus.io/guides/datasource), [Info](https://quarkus.io/extensions/io.quarkus/quarkus-jdbc-h2/)                          | Connect to the H2 database via JDBC                                                |