docs(changes): add changes for bootstrap users

CHANGES-5.0.md

@@ -27,6 +27,7 @@
 
 ## Enhancements
 
+* Add `bootstrap_users_file` configuration to add default Dashboard username list, which is only added when EMQX is first started.
 * The license is now copied to all nodes in the cluster when it's reloaded. [#8598](https://github.com/emqx/emqx/pull/8598)
 * Added a HTTP API to manage licenses. [#8610](https://github.com/emqx/emqx/pull/8610)
 * Updated `/nodes` API node_status from `Running/Stopped` to `running/stopped`. [#8642](https://github.com/emqx/emqx/pull/8642)