add version tag co config.

<?xml version="1.0" encoding="UTF-8"?>

<configuration xmlns="http://certic.unicaen.fr/max/ns/1.0" env="dev" vocabulary-bundle="max-dumb-xml">

    <version name="0.0.2" url="https://git.unicaen.fr/pdn-certic/max-v2/-/archive/0.0.2/max-v2-0.0.2.zip"/>

    <languages>

        <language>fr</language>

        <language>en</language>

      <attribute name="vocabulary-bundle">

        <data type="NCName"/>

      </attribute>

      <element name="version">

        <attribute name="name">

          <data type="NMTOKEN"/>

        </attribute>

        <attribute name="url">

          <data type="anyURI"/>

        </attribute>

      </element>

      <element name="languages">

        <oneOrMore>

          <element name="language">