TextBuffer description is missing in README

[sergei-dyshel]

At least some basic description (constructor and other basic methods which can not be deduced from index.js) would be helpful.

[sergei-dyshel]

I'm being a little pedantic here: while I totally understand that superstring is part of Atom and it's alright that classes provided by it are documented in Atom API docs, it's also a standalone node package so one may use it without any relation to Atom (actually I do) so one may expect to have some standalone documentation for the module itself.

You already describe Patch and MarkerIndex in the README, why not describe TextBuffer too?

[Arcanemagus]

it's also a standalone node package so one may use it without any relation to Atom (actually I do) so one may expect to have some standalone documentation for the module itself.

I confused this with something else, sorry!

Again, I confused this issue with something entirely unrelated, sorry!

You already describe Patch and MarkerIndex in the README, why not describe TextBuffer too?

A PR adding this documentation would be wonderful!