[#200] Update docs

Signed-off-by: Denis Kirillov <denis@nspcc.ru>

CHANGELOG.md

@@ -4,6 +4,9 @@ This document outlines major changes between releases.
 
 ## [Unreleased]
 
+### Added
+- Config reloading on SIGHUP (#200)
+
 ## [0.24.0] - 2022-09-14
 
 ### Fixed

downloader/download.go

@@ -259,6 +259,7 @@ type Downloader struct {
 	settings          *Settings
 }
 
+// Settings stores reloading parameters, so it has to provide atomic getters and setters.
 type Settings struct {
 	zipCompression atomic.Bool
 }

uploader/upload.go

@@ -43,6 +43,7 @@ type epochDurations struct {
 	blockPerEpoch uint64
 }
 
+// Settings stores reloading parameters, so it has to provide atomic getters and setters.
 type Settings struct {
 	defaultTimestamp atomic.Bool
 }