Merge pull request #1595 from bookernath/changelog

Add changelog for #1588

Author: bookernath

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## Draft
 - Fixes body text color not taking effect for cart item headings on mobile / tablet [#1586](https://github.com/bigcommerce/cornerstone/pull/1586)
 - Fix styling of review modal image [#1592](https://github.com/bigcommerce/cornerstone/pull/1592)
+- Fix typo in README.md [#1588](https://github.com/bigcommerce/cornerstone/pull/1588)
 
 ## 4.2.1 (2019-10-15)
 - Added missing gift certificate translation