diff --git a/dnsapi2.md b/dnsapi2.md
index 3b830f3..945ee06 100644
--- a/dnsapi2.md
+++ b/dnsapi2.md
@@ -2045,6 +2045,9 @@ To issue a cert, run the following:
 
 The login variables will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
 
+Docs:
+* https://cloud.tencent.com/document/product/302/105900
+
 Report any bugs or issues [here](https://github.com/acmesh-official/acme.sh/issues/4781)