Fix heading
[skip ci]
diff --git a/googletest/docs/primer.md b/googletest/docs/primer.md
index 6c33ebb..615727e 100644
--- a/googletest/docs/primer.md
+++ b/googletest/docs/primer.md
@@ -44,7 +44,7 @@
at home if you've used JUnit or PyUnit before. If not, it will take you about 10
minutes to learn the basics and get started. So let's go!
-# Beware of the nomenclature #
+## Beware of the nomenclature
_Note:_ There might be some confusion of idea due to different
definitions of the terms _Test_, _Test Case_ and _Test Suite_, so beware