diff --git a/docs/intro.md b/docs/intro.md
index 78165f6..05ff7c6 100644
--- a/docs/intro.md
+++ b/docs/intro.md
@@ -2,7 +2,7 @@
 sidebar_position: 1
 ---
 
-## Introduction
+# Introduction
 
 __PSX is an innovative PHP framework dedicated to build fully typed REST APIs.__
 
diff --git a/update.php b/update.php
index cf22889..3fbe113 100644
--- a/update.php
+++ b/update.php
@@ -20,7 +20,7 @@
 
     $content = file_get_contents($source);
     if (str_ends_with($dest, 'intro.md')) {
-        $content = str_replace('## About', '## Introduction', $content);
+        $content = str_replace('## About', '# Introduction', $content);
     }
 
     $prefix = <<<TEXT