Add section about CircleCI.

Phanabani · Phanabani · commit aa847571a39b · 2022-10-06T16:45:18.000-04:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -8,6 +8,7 @@
 - Use yalc to build and test our library in `/dev_app/`
 - Rewrite the testing page in typescript and with functional components
 - Remove unmaintained dependency `react-hotkeys`
+- Update CircleCI config
 
 # 2.2.2
 ## Fix
