diff --git a/main/doc/apache-felix-framework-configuration-properties_files/button.html b/main/doc/apache-felix-framework-configuration-properties_files/button.html
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+<html><head>
+<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"><!-- ads start -->
+</head><body><a href="http://www.us.apachecon.com/" target="_blank"><img src="button_data/2010-na-125x125.png" title="ApacheCon NA 2010" border="0" height="125" width="125"></a>
+<!-- ads end -->
+</body></html>
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