Update changelog with Reek

Change-Id: Iaca4f3632a827b4ec8ae3d02c5341d399665a2ab
Reviewed-on: http://gerrit.causes.com/44218
Tested-by: jenkins <jenkins@brigade.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>

Author: sds

CHANGELOG.md

@@ -8,6 +8,8 @@
   watchers a little more nicely.
 * Add pre-commit JavaScript style checking with
   [JSXCS](https://github.com/orktes/node-jsxcs)
+* Add pre-commit Ruby code smell checking with
+  [Reek](https://github.com/troessner/reek)
 
 ## 0.18.0