Tidying up 2.0

[ChrisShank]

I think there are some things left to explore before we publish 2.0. I just successfully updated my arrow library to use it and things are looking good! I would love to do some side by side comparisons to make sure perf and memory consumption have improved.

Todo List

• [ ] Update README/docs
• [x] think about adding a takeRecords method (This could be a 2.1 task)
• [ ] investigate perf/memory consumption
• [ ] think about removing private methods (see https://github.com/samthor/viz-observer/pull/3#discussion_r1575417324) (This could be a 2.1 task)
• [ ] optimize root refreshes (see https://github.com/samthor/viz-observer/pull/3#discussion_r1568076902) (This could be a 2.1 task, although it might be consider breaking 🤔)