Replace account, due to the old (hungwei) has been merged into hwchiu
diff --git a/groups b/groups
index a39c675..3ee2aac 100644
--- a/groups
+++ b/groups
@@ -13,4 +13,4 @@
 global:Registered-Users                 	Registered Users
 user:bocon                              	user/Brian O'Connor (bocon)
 user:cloudlab                           	user/Cloud Lab (cloudlab)
-user:hungwei                            	user/HungWei Chiu (hungwei)
+user:hwchiu                             	user/HungWei Chiu (hwchiu)