improve NadParameters documentation

[unetablettedechocolat]

Please check if the PR fulfills these requirements

• [x] The commit message follows our guidelines

What kind of change does this PR introduce? docs update

What is the current behavior? import NadParameters was not specified in the network visualization documentation

What is the new behavior (if this is a feature change)? import NadParameters is specified in the documentation

Does this PR introduce a breaking change or deprecate an API?

• [ ] Yes
• [x] No