added started and completed at structs

AniListTypes.go

@@ -64,6 +64,16 @@ type MediaList struct {
 		} `json:"nextAiringEpisode"`
 	} `json:"media"`
 	Status    string `json:"status"`
+	StartedAt struct {
+		Year  int `json:"year"`
+		Month int `json:"month"`
+		Day   int `json:"day"`
+	} `json:"startedAt"`
+	CompletedAt struct {
+		Year  int `json:"year"`
+		Month int `json:"month"`
+		Day   int `json:"day"`
+	} `json:"completedAt"`
 	Notes    string `json:"notes"`
 	Progress int    `json:"progress"`
 	Score    int    `json:"score"`