style

hsbt · hsbt · commit 8da383f23026 · 2016-10-03T18:43:22.000+09:00
diff --git a/History.rdoc b/History.rdoc
@@ -8,7 +8,7 @@
 
 === 11.3.0 / 2016-09-20
 
-Enhancements:
+==== Enhancements:
 
 * Remove to reference `Fixnum` constant. Pull request #160 by nobu
 
