Changes in version 8: Congestion notification

[marcelo bagnulo braun <marcelo@it.uc3m.es>]

Hi,

Following the discussion on this topic, i am including a new section in 
the introduction that states:

<section title="Congestion Control Considerations">
<t>When the locator pair currently used for exchanging packets in a 
Shim6 context
becomes unreachable, the Shim6 layer will divert the communication 
through
an alternative locator pair, which in most cases will result in 
redirecting the
packet flow through an alternative network path. In this case, it 
reccomended that
the Shim6 follows the reccomendation defined in <xref 
target="I-D.schuetz-tcpm-tcp-rlci"> and it
informs the upper layers about the path change, in order to allow
the congestion control mechanisms of the upper layers can react 
accordingly.
</t>
</section>


Let me know if this addresses the received comments and clears this 
issue

Thanks, marcelo