docs: [#97] update README

COPYRIGHT

@@ -9,4 +9,3 @@ licensed under the GNU Affero General Public License, Version 3.0 <LICENSE-AGPL_
 Except as otherwise noted (below and/or in individual files), Torrust-Index-Backend is licensed under the MIT-0 license <LICENSE-MIT_0> for all commits made after 5 years of merging. This license applies to the version of the files merged into the Torrust-Index-Backend project at the time of merging, and does not apply to subsequent updates or revisions to those files.
 
 The contributors to the Torrust-Index-Backend project disclaim all liability for any damages or losses that may arise from the use of the project.
-

README.md

@@ -1,68 +1,56 @@
 # Torrust Index Backend
 
-This repository serves as the backend for the [Torrust Index](https://github.com/torrust/torrust-index) project, that implements the [Torrust Index Application Interface](https://github.com/torrust/torrust-index-api-lib).
+[![Development Checks](https://github.com/torrust/torrust-index-backend/actions/workflows/develop.yml/badge.svg)](https://github.com/torrust/torrust-index-backend/actions/workflows/develop.yml) [![Publish crate](https://github.com/torrust/torrust-index-backend/actions/workflows/publish_crate.yml/badge.svg)](https://github.com/torrust/torrust-index-backend/actions/workflows/publish_crate.yml) [![Publish Docker Image](https://github.com/torrust/torrust-index-backend/actions/workflows/publish_docker_image.yml/badge.svg)](https://github.com/torrust/torrust-index-backend/actions/workflows/publish_docker_image.yml) [![Publish Github Release](https://github.com/torrust/torrust-index-backend/actions/workflows/release.yml/badge.svg)](https://github.com/torrust/torrust-index-backend/actions/workflows/release.yml) [![Test Docker build](https://github.com/torrust/torrust-index-backend/actions/workflows/test_docker.yml/badge.svg)](https://github.com/torrust/torrust-index-backend/actions/workflows/test_docker.yml)
 
-We also provide the [Torrust Index Frontend](https://github.com/torrust/torrust-index-frontend) project, that is our reference web-application that consumes the API provided here.
+This repository serves as the backend for the [Torrust Index](https://github.com/torrust/torrust-index) project, which implements the [Torrust Index Application Interface](https://github.com/torrust/torrust-index-api-lib).
 
-## Documentation
-
-You can read the Torrust Index documentation [here](https://torrust.com/torrust-index/install/#installing-the-backend).
-
-## Installation
+We also provide the [Torrust Index Frontend](https://github.com/torrust/torrust-index-frontend) project, which is our reference web application that consumes the API provided here.
 
-1. Setup [Rust / Cargo](https://www.rust-lang.org/) in your Environment.
+![Torrust Architecture](https://raw.githubusercontent.com/torrust/.github/main/img/torrust-architecture.webp)
 
-2. Clone this repo.
+## Key Features
 
-3. Set the database connection URI in the projects `/.env` file:
+* [X] Rest API
+* [X] Categories and tags
+* [X] Image proxy cache
 
-    ```bash
-    cd torrust-index-backend
-    echo "DATABASE_URL=sqlite://data.db?mode=rwc" >> .env
-    ```
+## Getting Started
 
-4. Install sqlx-cli and build the sqlite database:
+Requirements:
 
-    ```bash
-    cargo install sqlx-cli
-    sqlx db setup
-    ```
+* Rust Stable `1.68`
 
-5. Build the binaries:
+You can follow the [documentation](https://docs.rs/torrust-index-backend) to install and use Torrust Index Backend in different ways, but if you want to give it a quick try, you can use the following commands:
 
-    ```bash
-    cargo build --release
-    ```
+```s
+git clone https://github.com/torrust/torrust-index-backend.git \
+  && cd torrust-index-backend \
+  && cargo build --release
+```
 
-6. Run the backend once to generate the `config.toml` file:
+And then run `cargo run` twice. The first time to generate the `config.toml` file and the second time to run the backend with the default configuration.
 
-    ```bash
-    ./target/release/torrust-index-backend
-    ```
+After running the tracker the API will be available at <http://localhost:3000>.
 
-7. Review and edit the default `/config.toml` file.
-
-> _Please view the [configuration documentation](https://torrust.github.io/torrust-tracker/CONFIG.html)._
-
-8. Run the backend again:
+## Documentation
 
-    ```bash
-    ./target/torrust-index-backend
-    ```
+The technical documentation is available at [docs.rs](https://docs.rs/torrust-index-backend).
 
-## Contact and Contributing
+## Contributing
 
-Please consider the [Torrust Contribution Guide](https://github.com/torrust/.github/blob/main/info/contributing.md).
+We welcome contributions from the community!
 
-Please report issues:
+How can you contribute?
 
-* Torrust Index Backend specifically: [here](https://github.com/torrust/torrust-index-backend/issues).
-* Torrust Index in general: [here](https://github.com/torrust/torrust-index/issues).
+* Bug reports and feature requests.
+* Code contributions. You can start by looking at the issues labeled ["good first issues"](https://github.com/torrust/torrust-index-backend/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22).
+* Documentation improvements. Check the [documentation](torrust-index-backend) for typos, errors, or missing information.
+* Participation in the community. You can help by answering questions in the [discussions](https://github.com/torrust/torrust-index-backend/discussions).
 
----
+## License
 
-## Credits & Sponsors
+The project is licensed under a dual license. See [COPYRIGHT](./COPYRIGHT).
 
-This project was developed by [Dutch Bits](https://dutchbits.nl) for [Nautilus Cyberneering GmbH](https://nautilus-cyberneering.de/).
+## Acknowledgments
 
-The project has been possible through the support and contribution of both Nautilus Cyberneering, its team and collaborators, as well as that of our great open source contributors. Thank you to you all!
+This project was a joint effort by [Nautilus Cyberneering GmbH](https://nautilus-cyberneering.de/), [Dutch Bits](https://dutchbits.nl) and collaborators.  Thank you to you all!