fixed typo in changelog

git-svn-id: http://owasp-java-html-sanitizer.googlecode.com/svn/trunk@52 ad8eed46-c659-4a31-e19d-951d88f54425
diff --git a/CHANGE_LOG.html b/CHANGE_LOG.html
index e344bc8..4c13062 100644
--- a/CHANGE_LOG.html
+++ b/CHANGE_LOG.html
@@ -5,7 +5,7 @@
 <body>
 <h1>OWASP Java HTML Sanitizer Change Log</h1>
 <ol>
-<li value="50">Better handling of supplemental codepoints to avoid
+<li value="50">Better handling of supplementary codepoints to avoid
   UTF-16/UCS-2 confusion in browsers.</li>
 <li value="48">Added new HTML5 URL attributes to list used to
   safeguard URL attributes in <code>HtmlPolicyBuilder</code>.</li>