diff --git a/readme.md b/readme.md
index 5bb5618..d4044c4 100644
--- a/readme.md
+++ b/readme.md
@@ -28,7 +28,7 @@
   * **Currently, this repository is non-first priority, `2020-03-29 16:38:37.932649000 UTC`.**
 
 
-## Summary
+### Summary
 
 * Use multiple [Cryptographic hash function](https://en.wikipedia.org/wiki/Cryptographic_hash_function).
 * Based on the `Char` (Unicode) offset character.