further work on documentation

docs/install/docker/README.md

@@ -1,9 +0,0 @@
-It is possible to install this application using many docker configurations. 
-
-:warning: Please note that some examples here are 
-given because some people want to use them even tough they are not recommended!
-
-Please read the instructions/notes on each example carefully and decide if this is the way for you.
-
-
-> When in doubt, choose either **nginx-proxy** or **traefik-nginx**

docs/install/docker/docker.md

@@ -0,0 +1,68 @@
+It is possible to install this application using many docker configurations. 
+
+!!! warning 
+    Please note that some examples here are given 
+    because some people want to use them even tough they are not recommended!
+
+Please read the instructions/notes on each example carefully and decide if this is the way for you.
+
+## Docker
+The docker image (`vabene1111/recipes`) simply exposes the application on port `8080`. 
+
+It can be run using
+```shell
+docker run -d \
+    -v ./staticfiles:/opt/recipes/staticfiles \
+    -v ./mediafiles:/opt/recipes/mediafiles \
+    -p 80:8080 \
+    -e SECRET_KEY=
+    -e DB_ENGINE=django.db.backends.postgresql
+    -e POSTGRES_HOST=db_recipes
+    -e POSTGRES_PORT=5432
+    -e POSTGRES_USER=djangodb
+    -e POSTGRES_PASSWORD=
+    -e POSTGRES_DB=djangodb
+    vabene1111/recipes
+```
+
+Please make sure, if you run your image this way, to consult the [.env.template](https://raw.githubusercontent.com/vabene1111/recipes/master/.env.template)
+file in the GitHub repository to verify if additional environment variables are required for your setup.
+
+## Docker Compose
+The main and also recommended installation option is to install this application using docker compose.
+
+```yaml
+version: "3"
+services:
+  db_recipes:
+    restart: always
+    image: postgres:11-alpine
+    volumes:
+      - ./postgresql:/var/lib/postgresql/data
+    env_file:
+      - ./.env
+
+  web_recipes:
+    image: vabene1111/recipes
+    restart: always
+    env_file:
+      - ./.env
+    volumes:
+      - ./staticfiles:/opt/recipes/staticfiles
+      - ./mediafiles:/opt/recipes/mediafiles
+    depends_on:
+      - db_recipes
+
+  nginx_recipes:
+    image: nginx:mainline-alpine
+    restart: always
+    ports:
+      - 80:80
+    env_file:
+      - ./.env
+    volumes:
+      - ./nginx/conf.d:/etc/nginx/conf.d
+      - ./staticfiles:/static
+      - ./mediafiles:/media
+
+```

mkdocs.yml

@@ -11,4 +11,14 @@ theme:
     logo: cookbook/static/favicon.png
     favicon: cookbook/static/favicon.ico
     icon:
-      repo: fontawesome/brands/github
+      repo: fontawesome/brands/github
+
+markdown_extensions:
+  - admonition
+  - pymdownx.highlight
+  - pymdownx.superfences
+
+nav:
+  - Home: 'index.md'
+  - Installation:
+      - Docker: install/docker/docker.md