update docstrings environment.py and parsing.py

stix2/environment.py

@@ -200,6 +200,8 @@ class Environment(DataStoreMixin):
         Args:
             obj1: A stix2 object instance
             obj2: A stix2 object instance
+            prop_scores: A dictionary that can hold individual property scores,
+                weights, contributing score, matching score and sum of weights.
             weight_dict: A dictionary that can be used to override settings
                 in the semantic equivalence process
 

stix2/parsing.py

@@ -1,4 +1,4 @@
-"""STIX2 Core Objects and Methods."""
+"""STIX2 Core parsing methods."""
 
 import copy
 import importlib