docs: changelog

Author: justinmk

CHANGELOG.md

@@ -2,7 +2,11 @@
 
 ## [5.3.0](https://github.com/neovim/node-client/compare/v5.2.1...v5.3.0)
 
-- TBD
+- `findNvim` now searches various common locations, in addition to `$PATH`. That
+  makes it more useful for GUIs where `$PATH` is often different than the user's
+  shell. #267
+- `findNvim` now has a `firstMatch` parameter which callers can use to stop
+  searching after the first valid matching Nvim is found. #370
 
 ## [5.2.1](https://github.com/neovim/node-client/compare/v5.2.0...v5.2.1)