SOL005_5: updated description of Delete method of NSDManagement

src/SOL005/NSDManagement/NSDManagement.yaml

@@ -226,9 +226,9 @@ paths:
           #    due to a conflict with the state of the resource.
           #    Typically, this is due to the fact the NS descriptor
           #    resource is in the enabled operational state (i.e.
-          #    operationalState = ENABLED) or there are running
+          #    nsdOperationalState = ENABLED) or there are running
           #    NS instances using the concerned individual NS
-          #    descriptor resource (i.e. usageState = IN_USE).
+          #    descriptor resource (i.e. nsdUsageState = IN_USE).
           #    The response body shall contain a ProblemDetails
           #    structure, in which the "detail" attribute shall convey
           #    more information about the error.