update readme to match reality

Author: goto-bus-stop

README.md

@@ -2,7 +2,7 @@
 
 [Acorn](https://github.com/acornjs/acorn) preloaded with plugins for syntax parity with recent Node versions.
 
-It also includes versions of the plugins compiled with [Bublé](https://github.com/rich-harris/buble), so they can be run on old Node versions (0.6 and up).
+It also includes versions of the plugins compiled with [Babel](https://github.com/babel/babel), so they can be run on old Node versions (0.6 and up).
 
 [![npm][npm-image]][npm-url]
 [![travis][travis-image]][travis-url]
@@ -29,7 +29,6 @@ var acorn = require('acorn-node')
 
 The API is the same as [acorn](https://github.com/acornjs/acorn), but the following syntax features are enabled by default:
 
- - Numeric separators syntax `10_000`
  - Public and private class instance fields
  - Public and private class static fields
 
@@ -52,6 +51,6 @@ The files in the repo root and the ./test folder are licensed as [Apache-2.0](LI
 
 The files in lib/ are generated from other packages:
 
+- lib/class-fields: [acorn-class-fields](https://github.com/acornjs/acorn-class-fields), MIT
 - lib/class-private-elements: [acorn-class-private-elements](https://github.com/acornjs/acorn-class-private-elements), MIT
-- lib/numeric-separator: [acorn-numeric-separator](https://github.com/acornjs/acorn-numeric-separator]), MIT
 - lib/static-class-features: [acorn-static-class-features](https://github.com/acornjs/acorn-static-class-features), MIT