update CHANGELOG.md.

CHANGELOG.md

@@ -7,10 +7,12 @@
 - [Optimize: optimize configuration conditional & optimize config data tips](https://github.com/Tencent/spring-cloud-tencent/pull/603)
 - [Automatically transmit some headers specified by a environment varaible that directly defines header keys.](https://github.com/Tencent/spring-cloud-tencent/pull/606)
 - [Optimize: Maybe remove Chinese characters](https://github.com/Tencent/spring-cloud-tencent/pull/607)
+- [Optimize: InstanceId of PolarisRegistration and PolarisServiceRegistry](https://github.com/Tencent/spring-cloud-tencent/pull/610)
 - [ fix pr #606 cause ci fail](https://github.com/Tencent/spring-cloud-tencent/pull/613)
-- [Bugfix: fix feign report call result error when using feign direct call](https://github.com/Tencent/spring-cloud-tencent/pull/621)
-- [fix pr 606: modify a part of changes requested by review.](https://github.com/Tencent/spring-cloud-tencent/pull/620)
 - [fix pr 613: modify a judgment logic](https://github.com/Tencent/spring-cloud-tencent/pull/618)
+- [fix pr 606: modify a part of changes requested by review.](https://github.com/Tencent/spring-cloud-tencent/pull/620)
+- [Bugfix: fix feign report call result error when using feign direct call](https://github.com/Tencent/spring-cloud-tencent/pull/621)
+- [remove useless code for router](https://github.com/Tencent/spring-cloud-tencent/pull/626)
 - [Feature: support new label expression](https://github.com/Tencent/spring-cloud-tencent/pull/627)
 - [feat:report the labels when using RestTemplate.](https://github.com/Tencent/spring-cloud-tencent/pull/629)
 - [Bugfix: fix throw npe when router context is null](https://github.com/Tencent/spring-cloud-tencent/pull/635)