Add docs about trusting ROHD for development

[mkorbel1]

Description & Motivation

There are often questions about trusting ROHD simulation and SV generation, so this PR adds documentation around that to the user guide.

Also in this PR are a few minor typo fixes in various documentation.

Related Issue(s)

N/A

Testing

N/A

Backwards-compatibility

Is this a breaking change that will not be backwards-compatible? If yes, how so?

No

Documentation

Does the change require any updates to documentation? If so, where? Are they included?

Doc only