CodingStyle: Add commit naming rules & update README
This merge request brings an addition to the Documentation with:
- A section describing commit naming rules with some examples that is added to the coding style document.
- A reference to the
CodingStyle.md
document that is added to the "Contribute" section of theREADME
.
This is meant to properly help the new contributors (including the future GSoC students) and improve the code reviews.