Updated Install Wekan Docker for testing (markdown)

Install-Wekan-Docker-for-testing.md

@@ -1 +1,30 @@
-hop
+**Purpose**: just to try Wekan on your own Linux workstation
+
+1. [Install Docker](http://docs.docker.com/linux/step_one/)
+1. [Install Docker-Compose](http://docs.docker.com/compose/install/)
+1. Say we want to save our Wekan data on the host in directory `/home/johndoe/wekan/data`
+1. In a given directory (say `/home/johndoe/wekan`), create a `docker-compose.yml` file with:
+
+```yaml
+wekan:
+  image: mquandalle/wekan
+  links:
+    - wekandb
+  environment:
+    - MONGO_URL=mongodb://wekandb/wekan
+    - ROOT_URL=http://localhost:80
+  ports:
+    - 80:80
+
+wekandb:
+   image: mongo
+   volumes:
+     - /home/johndoe/wekan/data:/data/db
+```
+
+Then, from the directory containing the `docker-composer.yml` (i.e. `/home/johndoe/wekan`), simply run `docker-compose up`. If you want it to be deamonized, you could run `docker-compose up -d`.
+
+Your wekan data are in `/home/johndoe/wekan/data` and thus can be backed up.
+
+(This procedure has been tested on Linux Ubuntu 14.04.)
+