chore(release): Update CHANGELOG for 1.1.2 release (#248)

Author: Mike Davis

CHANGELOG.MD

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## [Unreleased]
 Changes that have landed but are not yet released.	Changes that have landed but are not yet released.
 
+## [1.1.2] - March 26th, 2020
+## New Features
+- refact: Update logging field keys to be consumable in structured logs [#246](https://github.com/optimizely/go-sdk/pull/246)
+
 ## [1.1.1] - March 25th, 2020
 ## New Features
 - feat: Logging sdk key masked value with every log message.  The masking is by default and can be disabled or set to a custom mapping. [#242](https://github.com/optimizely/go-sdk/pull/242)