Add missing xml declaration.

git-svn-id: https://svn.apache.org/repos/asf/xml/commons/trunk@226151 13f79535-47bb-0310-9956-ffa450edef68

src/documentation/content/xdocs/components/resolver/resolver-article.xml

@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE article
   PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">

src/documentation/content/xdocs/components/resolver/resolver-release-notes.xml

@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE article
   PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">