Fix changelog typo.

Author: T4rk1n

CHANGELOG.md

@@ -13,7 +13,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 ## [0.14.2] - 2018-10-11
 ### Fixed
 - Upgraded dependencies to remove warnings
-- Restored whatgw-fetch [#87](https://github.com/plotly/dash-renderer/issues/87)
+- Restored whatwg-fetch [#87](https://github.com/plotly/dash-renderer/issues/87)
 ### Added
 - Prettier support
 - Better ESLint configs