fix: fix x axis label of horizontal bar chart, #42

examples/horizontal_bar_chart/main.go

@@ -26,22 +26,22 @@ func writeFile(buf []byte) error {
 func main() {
 	values := [][]float64{
 		{
-			8203,
-			18203,
-			23489,
-			29034,
-			104970,
-			131744,
-			630230,
+			10,
+			30,
+			50,
+			70,
+			90,
+			110,
+			130,
 		},
 		{
-			9325,
-			19325,
-			23438,
-			31000,
-			121594,
-			134141,
-			681807,
+			20,
+			40,
+			60,
+			80,
+			100,
+			120,
+			140,
 		},
 	}
 	p, err := charts.HorizontalBarRender(