Updated Docker image (markdown)

Docker-image.md

@@ -1,5 +1,7 @@
 Docker is the easiest way to run Tracks, as the various library requirements have already been taken care of for you.
 
+## Official Docker image
+
 You can run Tracks by installing Docker and launching a MySQL instance for example using
 
 $ docker run --name mariadb -t mariadb
@@ -12,4 +14,30 @@ And then run an instance of the image using the following command (but replacing
 
 $ docker run -p 3000:3000 -e DATABASE_NAME=tracks_dev -e DATABASE_HOST=db -e DATABASE_PORT=5432 -e DATABASE_USERNAME=tracks_dev -e DATABASE_PASSWORD=password -e DATABASE_TYPE=mysql2 --name tracks --link mariadb:db -t tracks
 
-If all went to plan, you should now be able to reach Tracks in http://localhost:3000 .
+If all went to plan, you should now be able to reach Tracks in http://localhost:3000 .
+
+## Staannoe's Dockerimage
+
+### Prerequisites
+Docker installed on the host machine
+
+Tracks is a web-based application to help you implement David Allens Getting Things Done™ methodology. It was built using Ruby on Rails.
+
+This is the easy way getting up and running with Tracks, which is one of the greatest software implementations of the GTD™ methodology.
+
+This builds main parts are:
+
+* Tracks 2.3.0 (stable)
+* Ubuntu 14.04 
+* Tracks 2.2.3
+* Apache 2 (Passenger)
+* Sqlite3
+* Dockerize (Utility to simplify running applications in docker containers)
+
+It utilizes mostly native Ubuntu 14.04 packages, thus rebuilding it will provide the latest updates.
+
+For production use it is highly recommended to update the `site.yml.template` within the build repo, rename it to `site.yml` then rebuild the container.
+
+Example on how to run the Tracks container:
+
+     docker run -d --name=tracks -p 80:80 staannoe/tracks