Update ERC-6900: Update github handle (ethereum#6)

Merged by EIP-Bot.

ERCS/erc-6900.md

@@ -2,7 +2,7 @@
 eip: 6900
 title: Modular Smart Contract Accounts and Plugins
 description: Interfaces for composable contract accounts optionally supporting upgradability and introspection
-author: Adam Egyed (@adamegyed), Fangting Liu (@trinity-0111), Jay Paik (@jaypaik), Yoav Weiss (@yoavw), Huawei Gu (@hwgcircle), Daniel Lim, Zhiyu Zhang (@BostonXiaoyu)
+author: Adam Egyed (@adamegyed), Fangting Liu (@trinity-0111), Jay Paik (@jaypaik), Yoav Weiss (@yoavw), Huawei Gu (@huaweigu), Daniel Lim (@dlim-circle), Zhiyu Zhang (@ZhiyuCircle)
 discussions-to: https://ethereum-magicians.org/t/eip-modular-smart-contract-accounts-and-plugins/13885
 status: Draft
 type: Standards Track