[libvirt] Update to libvirt-lxc driver doc page

[Serge E. Hallyn]

Quoting Eric Blake (eblake at redhat.com):
> On 06/07/2010 08:55 AM, Serge Hallyn wrote:
> > Here is a new drvlxc.html.in file to make the first example work.  I'll
> > play with the second example next.
> 
> Thanks for the sample text; it looked good to me on a first read.  Are
> you willing to finish out this patch by also including the patch to
> Makefile.am to generate drvlxc.html and distribute the new file?

Hi Eric,

docs/Makefile has

dot_html_in = $(wildcard *.html.in)

and 'make distdir' does compile drvlxc.html

So when I get the second part of drvlxc.html.in updated, I'll send a
git diff for the whole thing.

thanks,
-serge