0.8.4 release

Author: singerb

docs/changelogs/0.8.4.md

@@ -0,0 +1,9 @@
+### QIT CLI 0.8.4 Release Notes
+
+#### What’s New
+
+Ignoring some common deprecation warnings when using extension sets.
+
+#### Support and Feedback
+
+If you have any questions, encounter issues, or have suggestions, please visit our [GitHub Issues Page](https://github.com/woocommerce/qit-cli/issues). Your feedback helps us continually improve QIT.