The technical overview link appears to be broken. Replace it with the
OpenDaylight Controller overview link.
Change-Id: I7ef52ea7d28380648f1f444f1d355b0c3d0bfe64
Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>
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The `OpenDaylight Integration/Packaging project`_ maintains this role.
-.. _OpenDaylight SDN controller: https://www.opendaylight.org/project/technical-overview
+.. _OpenDaylight SDN controller: https://www.opendaylight.org/what-we-do/odl-platform-overview
.. _OpenDaylight Integration/Packaging project: https://wiki.opendaylight.org/view/Integration/Packaging