add changelog entries I forgot (#846)

* add changelog entries I forgot

* and fix typo

Author: jackshirazi

CHANGELOG.next-release.md

@@ -13,7 +13,8 @@ This file contains all changes which are not released yet.
 <!--FIXES-END-->
 # Features and enhancements
 <!--ENHANCEMENTS-START-->
-
+Inferred spans can now be disabled and re-enabled via central config - [#838](https://github.com/elastic/elastic-otel-java/pull/838)
+The agent config is now logged on startup, use option elastic.otel.java.experimental.configuration.logging.enabled (default true) to disable if needed - [835](https://github.com/elastic/elastic-otel-java/pull/835)
 <!--ENHANCEMENTS-END-->
 # Deprecations
 <!--DEPRECATIONS-START-->