update readme with setup for the edge

Author: gireg.roussel

deployment/edge/ansible/README.md

@@ -2,6 +2,25 @@ Before launching ansible export a env to specify your local vio directory
 ```
 export LOCAL_VIO_DIR=
 ```
+### Setup the edge
+
+Install openssh-server on the edge:
+```bash
+ sudo apt-get install openssh-server
+```
+
+Then, try to connect through:
+```bash
+ ssh localhost
+```
+
+Install Docker on the edge help you with [this link](https://docs.docker.com/engine/install/ubuntu/#install-using-the-repository)
+Don't forget [post-installation](https://docs.docker.com/engine/install/linux-postinstall/) steps to run docker as a non-root user.
+
+Install *make* on the edge:
+```bash
+sudo apt-get install build-essential
+```
 
 
 ### Install sshpass and the requirements