In NSDManagement.yaml some parameter descriptions are in schema
I noticed this on 2.7.1-maintenance and 2.8.1. It may be in other branches too. Judging from the other operation parameters as well as the other swagger APIs in the repo this:
```yaml
schema:
$ref: "definitions/SOL005NSDescriptorManagement_def.yaml#/definitions/CreateNsdInfoRequest"
description: >
Parameters of creating an NS descriptor resource, as defined in clause 5.5.2.3.
```
Should be like this:
```yaml
schema:
$ref: "definitions/SOL005NSDescriptorManagement_def.yaml#/definitions/CreateNsdInfoRequest"
description: >
Parameters of creating an NS descriptor resource, as defined in clause 5.5.2.3.
```
This may seems superficial but it creates issues with validators/generators.
I have the diff ready but I am `not allowed to push code to this project.`
issue