docs: update readme

Author: josecelano

README.md

@@ -2,11 +2,12 @@
 
 [![MegaLinter](https://github.com/torrust/torrust-compose/actions/workflows/mega-linter.yml/badge.svg)](https://github.com/torrust/torrust-compose/actions/workflows/mega-linter.yml)
 
-This repo contains different sample Docker Compose configurations for the Torrust Index.
+This repo contains different sample Docker Compose configurations for the [Torrust Index](https://github.com/torrust/torrust-index).
 
 The current configurations are:
 
-- [`demo`](./demo/README.md): demo configuration, just to try the index.
+- [`demo`](./demo/README.md): demo configuration, just to try the index locally.
+- [`droplet`](./droplet/README.md): configuration to install the Index in a  [Digital Ocean Droplet](https://www.digitalocean.com/products/droplets). It should be very similar to any virtual machine.
 
 ## Requirements
 
@@ -27,16 +28,6 @@ After running the application remember the following:
 - Make sure you mount a volume to persist database data. That should be the default behavior, but it's better to be sure.
 Some configurations use a [mail catcher](https://mailcatcher.me/) container to catch emails sent by the index. You can access the mail catcher web interface at <http://localhost:1080>.
 
-## Contributing
-
-We welcome contributions from the community!
-
-How can you contribute?
-
-- Add new examples.
-- Bug reports and feature requests.
-- Code contributions. You can start by looking at the issues labeled ["good first issues"](https://github.com/torrust/torrust-compose/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22).
-
 ### MegaLinter
 
 Running MegaLinter locally:
@@ -62,3 +53,17 @@ Run only one linter using the linter `Key`:
 ```console
 npx mega-linter-runner -e "'ENABLE_LINTERS=JSON_PRETTIER'"
 ```
+
+## Contributing
+
+We welcome contributions from the community!
+
+How can you contribute?
+
+- Add new examples.
+- Bug reports and feature requests.
+- Code contributions. You can start by looking at the issues labeled ["good first issues"](https://github.com/torrust/torrust-compose/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22).
+
+## Links
+
+- In the [Torrust Demo Repository](https://github.com/torrust/torrust-demo), we are tracking issues with the [Index Live Demo](https://index.torrust-demo.com/torrents) which uses the [`droplet`](./droplet/README.md) configuration in this repo.