Update CodingStandards.md

[markcmiller86]

• I felt agreement alone was not sufficient to distinguish stage 1 from stage 2 here. What does agreement really mean? I think it means, minimally, that the coding standards everyone will adhere to are documented somewhere. It could also mean that new code written follows that standard which would result in a merging of stages 1 and 2. So, to keep those separate but nonetheless have stage 1 represent something a little more well defined and tangible value-added, I propose this change.
• I removed refactoring because I don't think actual refactoring of code is necessarily required to bring existing code into compliance with coding standards. It might be. But, I think its best to leave the "hows" out and be a little vague.