Some godoc adjustments

tpl/compare/compare.go

@@ -190,6 +190,7 @@ func (n *Namespace) Le(first any, others ...any) bool {
 
 // Lt returns the boolean truth of arg1 < arg2 && arg1 < arg3 && arg1 < arg4.
 // The provided collator will be used for string comparisons.
+// This is for internal use.
 func (n *Namespace) LtCollate(collator *langs.Collator, first any, others ...any) bool {
 	n.checkComparisonArgCount(1, others...)
 	for _, other := range others {