add please to sdk

Just a suggestion to add a "--help" support to benchdnn.
As today benchdnn does nt seem to have a --help support, the doc being only available online on this page:
https://github.com/intel/mkl-dnn/tree/master/tests/benchdnn
the proposal is to add a minimum of "print usage" to the benchdnn CLI tool.

Environ

For now the wiki page of OpenXRay is a mess!
I mean all necessary pages on all possible languages are trying to fit into main wiki page.
I haven't even found coding conventions from the first time!

That should be structured by the next design:

• Main page contains only links to language main wiki page.
• Language main page contains thematic sections like: Development, Modding, Using, Conti

As the title says.

I took some notes, went to go save as, it only saved a portion of my notes.
Provided some screen shots of what I mean below.

This was using ReClassE

The current version of the reference does not document that the instructions fsincos, fcos, fsin, fldenvd, fsaved, fprem1, frstord, and fstenvd where only introduced with the 80387 processor.