[W3C] Draft Mobile Web BPWG / Guidelines clarifications - correction

I just noticed that I forgot one element in my previous comments. Here
is the relevant part (with the missing element highlighted).

Eduardo Casais
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3) Cascaded proxies.

a. Section 4.1.3

Statement to be inserted:

"Whenever the requester is another transformation proxy, the
receiving proxy MUST treat it as a non-browser agent. The
receiving proxy SHOULD rely upon the presence of alternative
X-Device- HTTP fields and the values in the via HTTP field as
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
per 4.1.6.1 to detect that it is placed downstream from a 
^^^^^^^^^^^^
chain of proxies."