Update changelog to v1.1.0

Author: gahjelle

CHANGELOG.md

@@ -7,6 +7,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+## [1.1.0] - 2019-01-14
+
 ### Added
 
 - `.last` attribute with the value of the last measured time (by [@janfreyberg](https://github.com/janfreyberg) in [#13]).
@@ -15,12 +17,13 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - `AUTHORS.md` with a list of maintainers and contributors ([#18])
 
 
-## [1.0.0](https://github.com/realpython/codetiming/releases/tag/v1.0.0) - 2019-12-31
+## [1.0.0] - 2019-12-31
 
 Initial version of `codetiming`. Version 1.0.0 corresponds to the code in the tutorial [Python Timer Functions: Three Ways to Monitor Your Code](https://realpython.com/python-timer/).
 
 
-[Unreleased]: https://github.com/realpython/codetiming/compare/v1.0.0...HEAD
+[Unreleased]: https://github.com/realpython/codetiming/compare/v1.1.0...HEAD
+[1.1.0]: https://github.com/realpython/codetiming/compare/v1.0.0...v1.1.0
 [1.0.0]: https://github.com/realpython/codetiming/releases/tag/v1.0.0
 
 [#13]: https://github.com/realpython/codetiming/pull/13