Updating README.
Updating README.

Signed-off-by: Carlos Escribano <ab5e2bca84933118bbc9d48ffaccce3bac4eeb64@markhaus.com>

siwapp/siwapp-sf3,siwapp/siwapp-sf3,siwapp/siwapp-sf2,siwapp/siwapp-sf2,siwapp/siwapp-sf3