Explain the need of having an ssh key

In order for XCI to work, the user needs to have a ssh key. Explain
that on the README and show the command to generate it.

Change-Id: I517e15de15ba1b09977dbd62881bc2625c8b2833

diff --git a/prototypes/xci/README.rst b/prototypes/xci/README.rst
index f6539bb..0d93665 100644 (file)
--- a/prototypes/xci/README.rst
+++ b/prototypes/xci/README.rst
@@ -118,6 +118,12 @@ execute sandbox script
 Issuing above command will start aio sandbox deployment and the sandbox
 should be ready between 1,5 and 2 hours depending on the host machine.
 
+Please remember that the user executing the XCI script will need to
+have an ssh key available, and stored in $HOME/.ssh directory.
+You can generate one by executing
+
+    ssh-keygen -t rsa
+
 Advanced Usage
 --------------