Write a reference document for the leaderboard

[Aurelie-Mutschler]

Write a reference document for the leaderboard

Indicative due date : July 30th, 2017

Criteria to close the issue :

• fork the repo
• edit the file references/sigproc/leaderboard.md
• if you use latex formulas, please check the compatibility with the gitbook's plugin BEFORE making a pull request. A useful link for this : https://khan.github.io/KaTeX/
• make a pull request refering to this issue

[Aurelie-Mutschler]

Hey @hackolite here is the issue corresponding to the reference document you would like to write about the leaderboard ;-)

[Aurelie-Mutschler]

@hackolite do you notice me? :D