chore: Add Docker support to documentation

Introduces a Docker section in the README with instructions on
setting up Wikimore using Docker Compose, providing an
alternative to the standard installation method.

Updates .gitignore to exclude docker-compose.yml from version
control to prevent accidental configuration changes from being
tracked.

.gitignore

@@ -2,4 +2,5 @@ venv/
 .venv/
 __pycache__/
 *.pyc
-/dist/
+/dist/
+docker-compose.yml

README.md

@@ -70,6 +70,19 @@ wikimore
 
 4. Open your browser and navigate to `http://localhost:8109`
 
+## Docker
+
+For your convenience, we also provide a Docker image. Note however that this is _not_ the recommended way to run Wikimore.
+
+You can use the bundled `docker-compose-example.yml` file to run Wikimore with Docker Compose.
+
+```bash
+cp docker-compose-example.yml docker-compose.yml
+docker-compose up -d
+```
+
+This will start a container with Wikimore on port 8109. You can change the port in your `docker-compose.yml` file.
+
 ## Development
 
 1. Clone the repository