more VTLAs

[Poul-Henning Kamp]

In message <4B9390D1.8000805 at schokola.de>, Nils Goroll writes:

>I've tried to add some more definitions, maybe someone could review those?
>
>http://varnish-cache.org/wiki/VTLA?action=diff&version=5

good catch.

I have expanded the explations a bit.

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