Add changelog for the chakra-storefront

Author: vmarta

CHANGELOG.md

@@ -0,0 +1,8 @@
+## 0.1.0-extensibility-preview.4
+- Fix hreflang alternate links [#2269](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2269)
+- PDP / PLP: Add page meta data tags that have been defined in BM [#2232](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2232)
+- Send PWA Kit events to Data Cloud [#318] (https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2229)
+- Fix dependencies vulnerabilities [#2338](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2338)
+- Fix accessibility issues [#2375](https://github.com/SalesforceCommerceCloud/pwa-kit/pull/2375)
+
+For historical changelog, look for the original `retail-react-app` in the [release notes](https://github.com/SalesforceCommerceCloud/pwa-kit/releases).