diff --git a/1.2.1-Plugin-Classes-Directory.md b/1.2.1-Plugin-Classes-Directory.md
index 1234af9..b83036a 100644
--- a/1.2.1-Plugin-Classes-Directory.md
+++ b/1.2.1-Plugin-Classes-Directory.md
@@ -1,6 +1,6 @@
-# Files
+## Files
 
-Important files are highlighted in **bold** text.
+Particularly important files are highlighted in **bold** text.
 
 | File Name | Description |
 |------|-------------|
@@ -14,7 +14,7 @@ Important files are highlighted in **bold** text.
 | `templates.php` | Loads the various template files. |
 | `wysiwyg.php` | Provides integration with the WordPress WYSIWYG editor. |
 
-# Sub-directories
+## Sub-directories
 
 | Dir. Name | Description |
 |------|-------------|