Changelog add date to exported files

CHANGELOG.md

@@ -12,6 +12,7 @@
 		* Explicit number: `https://freshrss.example/i/?a=rss&nb=10`
 		* Limited by `min_posts_per_rss` and `max_posts_per_rss` in user config
 	* Support custom ports `localhost:3306` for database servers [#1241](https://github.com/FreshRSS/FreshRSS/issues/1241)
+	* Add date to exported files [#1240](https://github.com/FreshRSS/FreshRSS/issues/1240)
 * Bug fixing
 	* Correction of bugs related CSRF tokens introduced in version 1.5.0 [#1253](https://github.com/FreshRSS/FreshRSS/issues/1253), [44f22ab](https://github.com/FreshRSS/FreshRSS/pull/1261/commits/d9bf9b2c6f0b2cc9dec3b638841b7e3040dcf46f)
 	* Fix bug in Global view introduced in version 1.5.0 [#1269](https://github.com/FreshRSS/FreshRSS/pull/1269)