New translations group_added.html (Chinese Simplified)

library/language/zh/email/group_added.html

@@ -1,8 +1,11 @@
-恭喜你，
+Subject: You have been added to this usergroup
 
-你已经加入到"{GROUP_NAME}"组{SITENAME}的。
-这个动作由小组组长或站点管理员发出，请联系他们以获得更多信息。
+Congratulations,
 
-您可以在此查看您的组信息︰
+You have been added to the "{GROUP_NAME}" group on {SITENAME}.
+This action was done by the group moderator or the site administrator, contact them for more information.
+
+You can view your groups information here:
 {U_GROUP}
+
 {EMAIL_SIG}