Merge pull request #1620 from bc-williamkwon/updateChangelog

add changelog for PR 1601 and 1618

CHANGELOG.md

@@ -7,6 +7,8 @@
 - Add jquery-migrate to Modal test [#1599](https://github.com/bigcommerce/cornerstone/pull/1599)
 - Upgrade core-js to version 3 [#1598](https://github.com/bigcommerce/cornerstone/pull/1598)
 - Fix to make browser back button navigate pagination properly when faceted search is enabled [#1606](https://github.com/bigcommerce/cornerstone/pull/1606)
+- Fixes itemprop availability meta tag for price including tax case in price.html component [#1601](https://github.com/bigcommerce/cornerstone/pull/1601)
+- Cannot add wishlist with item when logged out [#1618](https://github.com/bigcommerce/cornerstone/pull/1618)
 
 ## 4.3.0 (2019-11-12)
 - Fixes body text color not taking effect for cart item headings on mobile / tablet [#1586](https://github.com/bigcommerce/cornerstone/pull/1586)