diff --git a/public/weChat-group.jpg b/public/weChat-group.jpg index 42133f71..29c21417 100644 Binary files a/public/weChat-group.jpg and b/public/weChat-group.jpg differ diff --git a/public/weChat-group.png b/public/weChat-group.png index 8f36f1aa..48ae3a6e 100644 Binary files a/public/weChat-group.png and b/public/weChat-group.png differ