CHANGELOG for account creation

See https://github.com/FreshRSS/FreshRSS/issues/679

CHANGELOG.md

@@ -5,6 +5,7 @@
 * Features
 	* Support for PubSubHubbub for instant notifications from compatible Web sites. [#312](https://github.com/FreshRSS/FreshRSS/issues/312)
 	* cURL options to use a proxy for retrieving feeds. [#897](https://github.com/FreshRSS/FreshRSS/issues/897) [#675](https://github.com/FreshRSS/FreshRSS/issues/675)
+	* Allow anonymous users to create an account. [#679](https://github.com/FreshRSS/FreshRSS/issues/679)
 * Security
 	* cURL options to verify or not SSL/TLS certificates (now enabled by default). [#897](https://github.com/FreshRSS/FreshRSS/issues/897) [#502](https://github.com/FreshRSS/FreshRSS/issues/502)
 	* Support for SSL connection to MySQL. [#868](https://github.com/FreshRSS/FreshRSS/issues/868)