Copter: Add value to paramiter discription

ArduCopter/Parameters.cpp

@@ -845,7 +845,7 @@ const AP_Param::GroupInfo ParametersG2::var_info[] = {
     // @Param: FRAME_CLASS
     // @DisplayName: Frame Class
     // @Description: Controls major frame class for multicopter component
-    // @Values: 0:Undefined, 1:Quad, 2:Hexa, 3:Octa, 4:OctaQuad, 5:Y6, 6:Heli, 7:Tri, 8:SingleCopter, 9:CoaxCopter, 11:Heli_Dual, 12:DodecaHexa, 13:HeliQuad
+    // @Values: 0:Undefined, 1:Quad, 2:Hexa, 3:Octa, 4:OctaQuad, 5:Y6, 6:Heli, 7:Tri, 8:SingleCopter, 9:CoaxCopter, 10:BiCopter, 11:Heli_Dual, 12:DodecaHexa, 13:HeliQuad
     // @User: Standard
     // @RebootRequired: True
     AP_GROUPINFO("FRAME_CLASS", 15, ParametersG2, frame_class, 0),