Refs #4082 - Add more examples for Nodes and Parameters section

I have a problem with this. This API call existed in version 2. Saying it is from version 4 is an over-simplification - and simply not true. What we need is to be able to specify *what* got updated in version 4, exactly.

I don't mind merging this PR as is, for now, because it is globally better to have more information that is all correct for the latest version, than partial, outdated documentation. However, let's work out a way to do this better.