It's great that you want to help others, but there are a few problems.
1st: No explanation.
All you really did was throw a build out. You didn't explain why it's better than other options or what it can do.
2nd: Lack of information.
Please also include things such as secret stones, masteries, and possibly eidolons.
Two orange weapons with the nocturnal prefix will not
4th: Not needed.
There is already a katar/ravager guide on forums here: PF's Devouring Claw Build
If you want to post your own guide, at least explain what makes your choice better or what it has to offer.
It's great that you'd like to help out others that have chosen to play katar, but please spend a little more time on it to make it useful. ^^