Fix copyright

Author: yuriipalam

zookeeper-website/public/doap.rdf

@@ -6,12 +6,21 @@
          xmlns:asfext="http://projects.apache.org/ns/asfext#"
          xmlns:foaf="http://xmlns.com/foaf/0.1/">
 <!--
-  =======================================================================
+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
 
-   Copyright (c) 2011 The Apache Software Foundation.  
-   All rights reserved.
+    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.
 -->
   <Project rdf:about="https://zookeeper.apache.org/">
     <created>2011-02-06</created>