Proposed minor spec changes, for comment.

[solderpunk]

On Mon, May 18, 2020 at 08:35:44PM +0000, solderpunk wrote:

Whoops, small mistake:

> ISSUE 1:
> 
> Problem: The current spec does not impose any limit on request header
> length.

This should say "response header", not "request header".

Cheers,
Solderpunk