use_api_core.md

@@ -6,8 +6,8 @@ In practise, DART is initialized by using a dictionary of parameters, and the ty
 ```python
 cfg = {
     # Options
-    'Threads' : int, # number of threads
-    'Verb' : int, # verbosity
+    'Threads': int, # number of threads (optional, default=1)
+    'Verb': int, # verbosity (optional, default=1)
     # Model (geometry or mesh)
     'File': str, # Input file containing the model
     'Pars': dict, # parameters for input file model
@@ -30,7 +30,7 @@ cfg = {
     'Fuselage': str, # name of physical group containing the fuselage boundary
     'WakeExs': str, # LIST of names of physical group containing the free edge of the wake and the intersection of lifting surface with fuselage (to be excluded from Wake B.C.), only required if a 'Fuselage' if present, otherwise 'WakeTips' is sufficient
     # Freestream
-    'M_inf' : float, # freestream Mach number
+    'M_inf': float, # freestream Mach number (optional, default=0)
     'AoA': float, # freestream angle of attack [deg] (optional, default=0)
     'AoS': float, # freestream angle of sideslip [deg] (optional, default=0)
     'Q_inf': float, # freesteam dynamic pressure (only required for aerostructural computations)