Update README.md

nakamura-to · web-flow · commit 450b0d694581 · 2020-09-13T16:13:39.000+09:00
[skip ci]
diff --git a/README.md b/README.md
@@ -20,7 +20,7 @@ Doma has various strengths:
 Examples
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-## type-safe Criteria API
+### type-safe Criteria API
 
 Written in Java 8:
 
