Clarified to_dict function description.

data/category.py

@@ -75,7 +75,10 @@ class Category:
         del score
 
     def to_dict(self) -> dict:
-        """Saves category data as a python dictionary."""
+        """
+        Saves category data as a python dictionary.
+        Does not include category name. It should be the key of above data structure.
+        """
         data = {}
         data["ascending"] = self.ascending
         data["time_record"] = self.time_record

data/guild.py

@@ -95,7 +95,10 @@ class Guild:
             self._table_map[table.name] = table
 
     def to_dict(self) -> dict:
-        """Creates python dictionary object from class data."""
+        """
+        Creates python dictionary object from class data.
+        Does not include guild_id in dict, it should be the key of above data structure.
+        """
         data: dict = {}
 
         data["highscore_channel_id"] = self.highscore_channel

data/table.py

@@ -57,7 +57,10 @@ class Table:
         return self._categories_map[category_name]
 
     def to_dict(self) -> dict:
-        """Saves table as a python dictionary."""
+        """
+        Saves table as a python dictionary.
+        Does not include table name. It should be the key of above data structure.
+        """
         data = {}
         data["message_id"] = self.message_id
         data["categories"] = {}