Comment out a block of code from XML file

I want to uncomment the following block in my XML file.

<!-- events for MySQL -->

  <!--

    <ResourceLink name="jdbc/FLOW-RPE2-ARCH:{ mapping=FLOW-RPE2.xml, table=events_archive }" global="jdbc/FLOW-EVENTS" type="javax.sql.DataSource" />

<ResourceLink name="jdbc/FLOW-RPE2-LIVE:{ mapping=FLOW-RPE2.xml, table=events_live }" global="jdbc/FLOW-EVENTS" type="javax.sql.DataSource" />

-->

This needs to be replaced with

<!-- events for MySQL -->

 <ResourceLink name="jdbc/FLOW-RPE2-ARCH:{ mapping=FLOW-RPE2.xml, table=events_archive }" global="jdbc/FLOW-EVENTS" type="javax.sql.DataSource" />

    <ResourceLink name="jdbc/FLOW-RPE2-LIVE:{ mapping=FLOW-RPE2.xml, table=events_live }" global="jdbc/FLOW-EVENTS" type="javax.sql.DataSource" />

Please guide me. Thanks in advance.