Added docker-compose.yml

Plus short explanation in readme
Changed the commit as pointed by @Shuro
Explained readme more as asked by @bastienwirtz

README.md

@@ -70,12 +70,41 @@ See [documentation](docs/configuration.md) for information about the configurati
 
 ### Using docker
 
+To launch container :
+
 ```sh
 docker run -p 8080:8080 -v /your/local/assets/:/www/assets b4bz/homer:latest
 ```
 
 Default assets will be automatically installed in the `/www/assets` directory. Use `UID` and/or `GID` env var to change the assets owner (`docker run -e "UID=1000" -e "GID=1000" [...]`).
 
+### Using docker-compose
+
+The `docker-compose.yml` file must be edited to match your needs.
+Set the port and volume (equivalent to -p and -v arguments) :
+
+```yaml
+volumes:
+  - /your/local/assets/:/www/assets
+ports:
+  - 8080:8080
+```
+
+To launch container :
+
+```sh
+cd /path/to/docker-compose.yml
+docker-compose up -d
+```
+
+Default assets will be automatically installed in the `/www/assets` directory. Use `UID` and/or `GID` env var to change the assets owner, also in `docker-compose.yml` :
+
+```yaml
+environment:
+- UID=1000
+- GID=1000
+```
+
 ### Using the release tarball (prebuilt, ready to use)
 
 Download and extract the latest the latest release (`homer.zip`) from the [release page](https://github.com/bastienwirtz/homer/releases), rename the `assets/config.yml.dist` file to `assets/config.yml`, and put it behind a webserver.

docker-compose.yml

@@ -0,0 +1,14 @@
+---
+version: "2"
+services:
+  homer:
+    image: b4bz/homer
+    container_name: homer
+    volumes:
+      - /your/local/assets/:/www/assets
+    ports:
+      - 8080:8080
+    #environment:
+    #  - UID=1000
+    #  - GID=1000
+    restart: unless-stopped