[one-users] Typo in the website documentation

[Tiago Batista]

On http://opennebula.org/documentation:rel2.0:oned_conf it is possible
to read on the image repository section:

"In order to use images with the CLONE attribute set to NO in NFS with
VM_DIR configurations, please be aware that, in the image catalog, the
IMAGE_REPOSITORY_PATH needs to be mounted in the same path in
____emotes____ physical nodes, and if the old, traditional SOURCE
attribute of the DISK section of the TM is to be used, the same path
set in the SOURCE attribute needs to exist in the remotes physical
nodes."