Update issues link to simple-generator

I went from `simple-2` to `simple-generator`, since that was the rename, and I suspect you're capturing issues in the generator repo, where most of the logic is.

This diff also contains a bunch of whitespace changes - my text editor strips trailing whitespace upon save. If that's a problem, I can resubmit, but it doesn't seem like a bad thing.

Diff without whitespace changes: https://github.com/openlawdc/simple/pull/2/files?w=1