epoch formats added

Author: Omesh2004

internal/exercises/solutions/36_epoch/epoch.go

@@ -71,4 +71,4 @@ func NowFormats() map[string]string {
 // Helper: format int64 as string
 func formatInt(val int64) string {
 	return time.Unix(0, val).UTC().Format("2006-01-02 15:04:05")
-}
+}