Draft: simple update description guidelines

[Rahul Sundaram]

Ralf Corsepius wrote:

> Yes, it's evident: You are presuming your proposal to be useful and do 
> not want to listen to anybody not sharing your view.

I have considered all the feedback given. Yours didn't convey much 
information beyond the fact that you didn't like it which I am already 
aware from earlier discussions as well.

Rahul