Polish Slice doc

tpl/template.go

@@ -189,8 +189,9 @@ func compareGetFloat(a interface{}, b interface{}) (float64, float64) {
 }
 
 // Slicing in Slice is done by specifying a half-open range with
-// two indices, lower and upper. 1 and 4 creates a slice including elements 1 through 3.
+// two indices, start and end. 1 and 4 creates a slice including elements 1 through 3.
-// The start and/or end indices can be omitted by setting one or both of them to -1; they default to zero and the slice's length respectively
+// The start and/or end indices can be omitted by setting one or both of them to -1;
+// they default to zero and the slice's length respectively
 func Slice(a interface{}, start, end int) (string, error) {
 	aStr, err := cast.ToStringE(a)
 	if err != nil {