agent: Recommend python 2.7.3 for windows in the README
agent: Recommend python 2.7.3 for windows in the README

Change-Id: Ib051c8f8890e70c3382f366f7272c51f9e711162
Signed-off-by: Vinzenz Feenstra <600e8a10eeff4f08c65e2cf493cd851025e86fd2@redhat.com>

oVirt/ovirt-guest-agent,edwardbadboy/ovirtagent-ubuntu,silenceli/oga-windows,edwardbadboy/ovirtagent-ubuntu,silenceli/oga-windows,edwardbadboy/ovirtagent-ubuntu,oVirt/ovirt-guest-agent,silenceli/oga-windows,oVirt/ovirt-guest-agent,edwardbadboy/ovirtagent-ubuntu,oVirt/ovirt-guest-agent,silenceli/oga-windows