[babel] show R commands in html export

[Vikas Rawal <vikaslists@agrarianresearch.org>]

Is it possible that org-babel shows not just the output of R commands
but also R commands themselves in the html output?

I could perhaps write the commands twice, once outside the code block
(to make the commands appear as they are), and once inside the
codeblock to display output of those commands. But is there a better
solution?

If using them twice is the only way, what would be the best way to
set the code (when typed outside the codeblock) so that it is
formatted properly in the html output?

Vikas