Show how to edit extended attribtues for sciencebase items with sbtools.

[dblodgett-usgs]

It's not clear how to edit other aspects of the sbjson with sbtools based on documentation.

Make sure that it works and is clear how to edit any part of the json.

[dblodgett-usgs]

Basically it's just this.

library(sbtools)
item <- "blahblah"

initialize_sciencebase_session("you@you.com")

item <- item_get(item)

item$citation <- "this is a test"

item_update(item, unclass(item))