update CHANGELOG.md

CyJaySong · CyJaySong · commit 05ef4784eb61 · 2021-06-03T11:00:23.000+08:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 2.0.0
+
+* add example.
 ## 1.0.0
 
 * first release.
