Add gotify configuration instructions

notify.md

@@ -547,7 +547,21 @@ acme.sh --set-notify --notify-hook bark
 ```
 
 ## 17. Set notification for Gotify
+通过gotify推送通知
 
+其中`GOTIFY_PRIORITY`的数字是0-9（等级越高，推送级别越高）
+
+Send notifications through gotify
+
+The number of 'GOTIFYBRIORITY' is 0-9 (the higher the level, the higher the push level)
+```
+export GOTIFY_URL="https://example.com"
+export GOTIFY_TOKEN="XXXXXXX"
+export GOTIFY_PRIORITY="0"
+```
+```sh
+acme.sh --set-notify --notify-hook gotify
+```
 
 ## 18. Set notification for work.weixin.qq.com(企业微信)