docs: fix Split examples

Author: demget

options.go

@@ -197,8 +197,8 @@ func (r *ReplyMarkup) Row(many ...Btn) Row {
 // For example, if you pass six buttons and 3 as the max, you get two rows with
 // three buttons in each.
 //
-// Split(3, []Btn{six buttons...}) -> [[1, 2, 3], [4, 5, 6]]
-// Split(2, []Btn{six buttons...}) -> [[1, 2],[3, 4],[5, 6]]
+// `Split(3, []Btn{six buttons...}) -> [[1, 2, 3], [4, 5, 6]]`
+// `Split(2, []Btn{six buttons...}) -> [[1, 2],[3, 4],[5, 6]]`
 //
 func (r *ReplyMarkup) Split(max int, btns []Btn) []Row {
 	rows := make([]Row, (max-1+len(btns))/max)