1. 补充农历覆盖到公元前104年

2. 修正年号问题

calendar/era.go

@@ -168,7 +168,7 @@ func nianHaoMap() map[string][][]int {
 		"庆历":     [][]int{{1041, 1048}},
 		"康定":     [][]int{{1040, 1041}},
 		"宝元":     [][]int{{1038, 1040}},
-		"景佑":   [][]int{{1034, 1038}},
+		"景祐":     [][]int{{1034, 1038}},
 		"明道":     [][]int{{1032, 1033}},
 		"天圣":     [][]int{{1023, 1032}},
 		"乾兴":     [][]int{{1022, 1022}},
@@ -2105,7 +2105,7 @@ func wudaiSongYuanEras() []Era {
 		{
 			Year:    1034,
 			Emperor: "宋仁宗",
-			Nianhao: "景佑",
+			Nianhao: "景祐",
 			Dynasty: "宋",
 		},
 		{