User:Psarka/PR2 computed example

This is a proposal to replace the ARR RRR template by two separate templates, one for risk reduction, and one for risk increase.

Motivation
The current ARR RRR template is as follows:

In my opinion it is cognitively overloaded, as the differences between risk reduction and risk increase are quite significant, so it is cumbersome to merge them to one. In particular:


 * many fields contain missing values, indicating the difference
 * if/else logic (expressed as 0) is necessary to separate the terms
 * shared formulas for ARR & ARI, RRR & RRI, NNT & NNH are actually not shared in the main literature, so the actual separation is even larger.

Changes
This is a proposed example for the risk reduction:

This is a proposed example for the risk increase:

While they duplicate some of the content, separate examples are, in my opinion, easier to comprehend at a glance.