Add basic documentation to docker installation + initialize empty folders for themes and content

readme.md

@@ -69,6 +69,44 @@ Make sure that the following folders and all their files are writable (permissio
 You can use your ftp-software for that.
 
 ### Docker installation
+> :warning: This image does not provide TLS support. It's perfect either for local use or behind your own proxy, you're advised.
+
+Clone and edit the config.example.php you find in this repository and move it as config.php
+```
+git clone git://github.com/trendschau/typemill.git
+cd typemill
+```
+
+Build your image locally
+```
+docker build -t typemill:local .
+```
+
+Run the docker image without persistence on port 8080
+```
+docker run -d --name typemill -p 8080:80 typemill:local
+```
+
+Run typemill with persistence
+```
+docker run -d \
+    --name=typemill \
+    -p 8080:80 \
+    -v $(pwd)/typemill_data/settings/:/var/www/html/settings/ \
+    -v $(pwd)/typemill_data/media/:/var/www/html/media/ \
+    -v $(pwd)/typemill_data/cache/:/var/www/html/cache/ \
+    -v $(pwd)/typemill_data/content/:/var/www/html/content/ \
+    -v $(pwd)/typemill_data/themes/:/var/www/html/themes/ \
+    typemill:local
+```
+
+#### Volumes
+
+- `settings` : persists users profiles, site configuration, etc. (empty by default)
+- `media` : persists media files (empty by default)
+- `cache` : persists cache files for performance purpose (optional and empty by default)
+- `content` : persists content published (will be initialized with default examples if the binded volume is empty)
+- `themes` : persists installed themes (will be initialized with default examples if the binded volume is empty)
 
 
 ## Setup