spec: add the glossary (#935)
spec: add the glossary (#935)

Signed-off-by: Nikolay Nikolaev <f2b42de064d1c3e5a65b22f23cd1d00619e08e54@vmware.com>
networkservicemesh/networkservicemesh,networkservicemesh/networkservicemesh,networkservicemesh/networkservicemesh,networkservicemesh/networkservicemesh