Tweak changelog

Author: sandhose

CHANGES.md

@@ -3,14 +3,13 @@
 ### Features
 
 - Add functionality to be able to use multiple values in SSO feature `attribute_requirements`. ([\#17949](https://github.com/element-hq/synapse/issues/17949))
-- Add experimental config options `admin_token_path` and `client_secret_path` for MSC 3861. ([\#18004](https://github.com/element-hq/synapse/issues/18004))
+- Add experimental config options `admin_token_path` and `client_secret_path` for [MSC3861](https://github.com/matrix-org/matrix-spec-proposals/pull/3861). ([\#18004](https://github.com/element-hq/synapse/issues/18004))
 - Add `get_current_time_msec()` method to the [module API](https://matrix-org.github.io/synapse/latest/modules/writing_a_module.html) for sound time comparisons with Synapse. ([\#18144](https://github.com/element-hq/synapse/issues/18144))
 
 ### Bugfixes
 
-- Fix a bug when updating a user 3pid with invalid returns 500 server error change to 400 with a message. ([\#18125](https://github.com/element-hq/synapse/issues/18125))
+- Update the response when a client attempts to add an invalid email address to the user's account from a 500, to a 400 with error text. ([\#18125](https://github.com/element-hq/synapse/issues/18125))
 - Fix user directory search when using a legacy module with a `check_username_for_spam` callback. Broke in v1.122.0. ([\#18135](https://github.com/element-hq/synapse/issues/18135))
-- Add rate limit `rc_presence.per_user`. This prevents load from excessive presence updates sent by clients via sync api. Also rate limit `/_matrix/client/v3/presence` as per the spec. Contributed by @rda0. ([\#18145](https://github.com/element-hq/synapse/issues/18145))
 
 ### Updates to the Docker image
 
@@ -25,7 +24,7 @@
 
 ### Internal Changes
 
-- Overload DatabasePool.simple_select_one_txn to return non-None when the allow_none parameter is False. ([\#17616](https://github.com/element-hq/synapse/issues/17616))
+- Overload `DatabasePool.simple_select_one_txn` to return non-`None` when the `allow_none` parameter is `False`. ([\#17616](https://github.com/element-hq/synapse/issues/17616))
 - Python 3.8 EOL: compile native extensions with the 3.9 ABI and use typing hints from the standard library. ([\#17967](https://github.com/element-hq/synapse/issues/17967))
 - Add log message when worker lock timeouts get large. ([\#18124](https://github.com/element-hq/synapse/issues/18124))
 - Make it explicit that you can buy an AGPL-alternative commercial license from Element. ([\#18134](https://github.com/element-hq/synapse/issues/18134))