updated data.py docstrings

pocket_friends/game_files/io/data.py

@@ -3,7 +3,12 @@ import json
 
 
 class SaveData:
+    """
+    Class used to read and write save data for the game
 
+    Attributes:
+        attributes (dict): Dictionary containing all the attributes to read and write from a save file.
+    """
     def __init__(self):
         """
         Constructs the object with all starting values.