diff --git a/doc/index.html b/doc/index.html
index 5465a01..834e325 100644
--- a/doc/index.html
+++ b/doc/index.html
@@ -29,7 +29,7 @@ too.
 
 <p>Voila!  You can use ssh/scp/sftp/rsync to talk to your Android device!</p>
 
-<h3>Configuration</h3>
+<h2>Configuration</h2>
 
 <p>There are three directory settings that are important for SimpleSSHD.</p>
 
@@ -51,13 +51,13 @@ dropbear server.  The options which are hardcoded are: <tt>-R -F -p
 :portno</tt>.  You can use <tt>\</tt> or <tt>"</tt> to escape characters
 in this commandline.</p>
 
-<h3>Change Log</h3>
+<h2>Change Log</h2>
 
 <ul>
 <li> <b>2014/12/22 Version 1.0:</b> Initial public release.
 </ul>
 
-<h3>About</h3>
+<h2>About</h2>
 
 <p>SimpleSSHD is built using parts from open source projects: dropbear
 server, openssh (for scp and sftp-server), and rsync.  Those projects in