add CONTRIBUTORS.md

CONTRIBUTORS.md

+CONTRIBUTORS
+============
+
+This is a list of people who have made contributions to Macsyfinder.
+
+
+| Emoji             | Represents    | Comments                                                             |
+|-------------------|---------------|----------------------------------------------------------------------|
+|:computer:         | Code          | Linked to whoever commits on source code by the user on this project |
+|:pencil2:          | Documentation | Linked to whoever commits on Wiki, or other source of documenta      |
+|:bulb:             | Ideas         | Linked to whoever brings ideas                                       |
+|:bug:              | Bug reports   | Linked to whoever report issues                                      |
+|:umbrella:         | User Testing  | Linked to whoever does, user tests                                   |
+
+
+ * Bryan Brancotte :computer: :bulb: :pencil2: :bug: 
+ * Christophe Malabat :bulb: :umbrella: :bug: :computer
+ * Hervé MENAGER :bulb: :umbrella:
+ * Elodie Chapeaublanc :umbrella: :pencil2: :bug: 
+ * Rachel Legendre :bulb: :umbrella:
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