Update db.py

db.py

@@ -14,7 +14,7 @@ class Race(Model):
     course_sit: Course situation (0: 良, 1: 稍重, 2: 重, 3: 不良)
     weather: Weather (0: 晴, 1: 曇, 2: 小雨, 3: 雨, 4: 小雪, 5: 雪)
     distance: Distance (in meters)
-    horses: List of horses
+    horses: Json format, List of horses
         list of horse info(in list)
         [
             hid,                # horse id
@@ -63,7 +63,7 @@ class Horse(Model):
     born: Date of birth
     name: Horse name
     info: Horse info (gender, color, etc.)
-    races: List of races
+    races: Json format, List of races
         list of race info(in list)
         [
             r_id,               # race id