update changelog

Author: reklatsmasters

changelog.md

@@ -1,9 +1,13 @@
 # Change Log
-All notable changes to the "dtls" package will be documented in this file.
+All notable changes to the "stun" package will be documented in this file.
+
+## [2.1.0] - 2019-11-23
+
+- `stun.request` supports promise interface.
 
 ## [2.0.0] - 2019-06-02
 
-- Add `request()` method to siplify client-side requests. Follow the `STUN` specification.
+- Add `request()` method to simplify client-side requests. Follow the `STUN` specification.
 - All STUN-related errors inherit `StunError`. See `StunMessageError` and `StunResponseError`.
 - A big `StunMessage` class was replased by `StunRequest` and `StunResponse`. They are represent outgoing and incoming messages. The main difference is that you cannot change incoming message.
 - Added simple CLI, use `npx stun` or `npx stun -p 3478`.