Hello,

> On Thu, Feb 11, 2016 at 11:22:25PM +0000, Clint Adams wrote:
>> The way @kbd{tab} is getting rendered in the Info and HTML 
>> documentation is confusing some users,

in HTML, the @kbd{tab} is rendered as <kbd>TAB</kbd>.
While the default CSS has no special rendering for <kbd>,
in our official online page it has "font-style: oblique;",
and so it is already rendered nicely:
https://www.gnu.org/software/sed/manual/sed.html#wc-_002dw

in INFO (viewed on a text terminal), indeed @key{TAB} is more noticeable
than @kbd{tab}.

I suggest the following patch (in your name) to add @key{TAB} but
also keep the existing @kbd{}.

If there are no objections I'll push this soon.

regards,
  - assaf