Update nuage-plugin.rst
Update nuage-plugin.rst

Revised supported version to "Nuage VSP 3.2" and changed "VirtualRouter" to "VpcVirtualRouter".

Signed-off-by: runseb <runseb@gmail.com>

This closes #16

apache/cloudstack-docs,KrisSterckx/cloudstack-docs,apache/cloudstack-docs,KrisSterckx/cloudstack-docs,apache/cloudstack-docs,KrisSterckx/cloudstack-docs