CHANGELOG.md in govuk_navigation_helpers-2.1.0 vs CHANGELOG.md in govuk_navigation_helpers-2.1.1

@@ -1,4 +1,8 @@
+## 2.1.1
+
+* Add `Jenkinsfile` for CI on Jenkins 2
+
 ## 2.1.0
 
 * Add helper to render taxon breadcrumbs
 
 ## 2.0.0