Optimization (inference match result): regenerate parser and update changelog

(review this change with the space changes ignored)

Author: Mingun

CHANGELOG.md

@@ -79,6 +79,8 @@ Released: TBD
     - `zero_or_more`
     - `one_or_more`
     - `group`
+- Several optimizations in the generator. Generated parsers now faster and smaller
+  [@Mingun](https://github.com/peggyjs/peggy/pull/118)
 
 ### Bug fixes