fix: improve the federation.config

.env.docker.example

@@ -10,4 +10,14 @@ APP_VERSION=latest
 PORT=5173
 HOSTNAME=0.0.0.0
 
+# Logger configuration
+LOG_PRETTY=true
+LOG_LEVEL="trace"
+
+# If you don't want to use the default home page you can turn off
+# in this case the /discovery page remain the home of your site
 PUBLIC_LANDING_INFO=true
+
+# Federation config
+FEDERATION_INSTANCE=false
+