Merge release branch into master branch [skip ci]

Author: Nubisproject (Mozilla)

CHANGELOG.md

@@ -5,13 +5,14 @@
 
 **Closed issues:**
 
-- Tag v2.4.0 release [\#278](https://github.com/nubisproject/nubis-docs/issues/278)
+- Tag v2.4.0 release [\#281](https://github.com/nubisproject/nubis-docs/issues/281)
 
 ## [v2.4.0](https://github.com/nubisproject/nubis-docs/tree/v2.4.0) (2019-02-23)
 [Full Changelog](https://github.com/nubisproject/nubis-docs/compare/v2.3.1...v2.4.0)
 
 **Closed issues:**
 
+- Tag v2.4.0 release [\#278](https://github.com/nubisproject/nubis-docs/issues/278)
 - Tag v2.4.0 release [\#275](https://github.com/nubisproject/nubis-docs/issues/275)
 - Tag v2.4.0 release [\#272](https://github.com/nubisproject/nubis-docs/issues/272)
 - Tag v2.4.0 release [\#269](https://github.com/nubisproject/nubis-docs/issues/269)
@@ -20,6 +21,8 @@
 
 **Merged pull requests:**
 
+- Update CHANGELOG for v2.4.0 release \[skip ci\] [\#283](https://github.com/nubisproject/nubis-docs/pull/283) ([nubis-automation](https://github.com/nubis-automation))
+- Update CHANGELOG for v2.4.0 release \[skip ci\] [\#282](https://github.com/nubisproject/nubis-docs/pull/282) ([nubis-automation](https://github.com/nubis-automation))
 - Update CHANGELOG for v2.4.0 release \[skip ci\] [\#280](https://github.com/nubisproject/nubis-docs/pull/280) ([nubis-automation](https://github.com/nubis-automation))
 - Update CHANGELOG for v2.4.0 release \[skip ci\] [\#279](https://github.com/nubisproject/nubis-docs/pull/279) ([nubis-automation](https://github.com/nubis-automation))
 - Update CHANGELOG for v2.4.0 release \[skip ci\] [\#277](https://github.com/nubisproject/nubis-docs/pull/277) ([nubis-automation](https://github.com/nubis-automation))