Reworded changelog 1247

https://github.com/FreshRSS/FreshRSS/pull/1660
https://github.com/FreshRSS/FreshRSS/pull/1292
https://github.com/FreshRSS/FreshRSS/issues/1247

CHANGELOG.md

@@ -3,7 +3,7 @@
 ## 2017-1X-XX FreshRSS 1.8.1-dev
 
 * UI
-	Show API subscription URL [#1247](https://github.com/FreshRSS/FreshRSS/issues/1247)
+	Show URL to add subscriptions from third-party tools [#1247](https://github.com/FreshRSS/FreshRSS/issues/1247)
 * SimplePie
 	* Remove "SimplePie" name from HTTP User-Agent string [#1656](https://github.com/FreshRSS/FreshRSS/pull/1656)
 * Bug fixing