mis en place la PR de simon sur les couleurs

src/Pieces/Rotation.h

@@ -13,14 +13,16 @@ enum Rotation {
 
 
 /**
- * Addition operator, returns a rotation corresponding to doing both rotations
+ * Addition operator
+ * @return A rotation corresponding to doing both rotations
  */
 inline Rotation operator+(const Rotation& left, const Rotation& right) {
     return Rotation((left + right) % 4);
 }
 
 /**
- * Additive assignation operator, rotate the left rotation by the right rotation
+ * Additive assignation operator, rotates the left rotation by the right rotation
+ * @return A reference to the left rotation
  */
 inline Rotation& operator+=(Rotation& left, const Rotation& right) {
     left = left + right;