add example generated directory.

[expressjs]

add example generated directory.

[dougwilson]

Yea, perhaps. I definitely think it's useful to see the generated stuff just online.

[nickmccurdy]

Personally, I think it would be cool to just have the directory structure in the readme (similar to tree's output). However, I think also having the generated source somewhere might also be useful.

[matthewboman]

I found this discussion while looking for an example of bin/www because it doesn't always show up like it should, but sometimes does (for reasons I can't explain). So on that note, I think having the directory structure somewhere, with the code available too, would be super useful for those of us who are new and still figuring stuff out.