Added missing license to example.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4php/trunk@1395584 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/examples/resources/appender_firephp.xml b/src/examples/resources/appender_firephp.xml
index 15f5573..279444e 100644
--- a/src/examples/resources/appender_firephp.xml
+++ b/src/examples/resources/appender_firephp.xml
@@ -1,6 +1,20 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- http://logging.apache.org/log4php/ -->
-
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License. You may obtain a copy of the License at
+ 
+         http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
 <configuration xmlns="http://logging.apache.org/log4php/">
     <appender name="firePhpAppender" class="LoggerAppenderFirephp">
         <layout class="LoggerLayoutSimple" />