update changelog

Author: manuel-rhdt

CHANGELOG.md

@@ -5,8 +5,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.1.1] 2020-04-29
+
+### Fixed
+
+- The project now builds again with rusttype < 0.9
+
 ## [1.1.0] 2020-04-29
 
+This release does not build.
+
 ### Changed
 
 - Updated dependencies (`harfbuzz-sys` and the optional dep. `rusttype`)