update changelog

Author: marcuspoehls

CHANGELOG.md

@@ -1,8 +1,15 @@
 # Changelog
 
+## Version [3.2.1](https://github.com/fs-opensource/hapi-dev-errors/compare/v3.2.0...v3.2.1) (2019-01-xx)
+- `add` error handler class and refactor code
+- `update` split plugin handling and extension point registration from request handling
+- `update` move icons (Google, Stack Overflow) to SVG files
+
+
 ## Version [3.2.0](https://github.com/fs-opensource/hapi-dev-errors/compare/v3.1.0...v3.2.0) (2018-10-10)
 - `add` new option [`links`](https://github.com/fs-opensource/hapi-dev-errors#plugin-registration-options) which represents an array of callback functions to render helpful links. By default, `hapi-dev-errors` renders linked SVG icons for Google and Stack Overflow to search for help based on the error message
 
+
 ## Version [3.1.0](https://github.com/fs-opensource/hapi-dev-errors/compare/v3.0.1...v3.1.0) (2018-09-28)
 - `add` pass `request` to custom view: this allows you to access every request property
 - `add` pass `error` to custom view: this allows you to access every response property