server: Update README.md

server/README.md

@@ -3,7 +3,13 @@
 ## Run
 1. We need the xsn rpc server running, download the latest one from [xsn releases](https://github.com/X9Developers/XSN/releases), then, start the rpc server with: `bin/xsnd -txindex -addressindex -spentindex -rpcport=51473 -rpcuser=dummy -rpcpassword=replaceme`
 
-2. In case you modified the parameters to start the xsn rpc server, edit the [application.conf](server/conf/application.conf).
+2. Edit the [application.conf](server/conf/application.conf).
+
+* In case you modified the parameters to start the xsn rpc server, update the credentials.
+
+* Set the credentials to access a postgres database.
+
+* Replace `play.modules.enabled += "com.xsn.explorer.modules.SeederModule"` with `play.modules.enabled += "com.xsn.explorer.modules.PollingSeederModule"`.
 
 3. Run the application with: `sbt run`