Update full-node-ansible.md

Author: hsutaiyu

docs/pos/how-to/full-node/full-node-ansible.md

@@ -74,6 +74,10 @@ An [Ansible playbook](https://docs.ansible.com/ansible/latest/user_guide/playboo
 ```bash
 moniker=<enter unique identifier>
 ```
+Copy the following line and add it to the config file to define the seed node addresses.
+
+seeds="1500161dd491b67fb1ac81868952be49e2509c9f@52.78.36.216:26656,dd4a3f1750af5765266231b9d8ac764599921736@3.36.224.80:26656,8ea4f592ad6cc38d7532aff418d1fb97052463af@34.240.245.39:26656,e772e1fb8c3492a9570a377a5eafdb1dc53cd778@54.194.245.5:26656,6726b826df45ac8e9afb4bdb2469c7771bd797f1@52.209.21.164:26656"
+
 **Mainnet**
 
 - 1500161dd491b67fb1ac81868952be49e2509c9f@52.78.36.216:26656