CHANGELOG.md in graphql-metrics-3.0.1 vs CHANGELOG.md in graphql-metrics-3.0.2

@@ -1,4 +1,9 @@
+3.0.2
+-----
+
+- [#21](https://github.com/Shopify/graphql-metrics/pull/21) Optimize empty document check
+
 3.0.1
 -----
 
 Expand the range of graphql-ruby versions this gem is compatible with.