chode(xcm-api): Update readme

apps/xcm-api/README.md

@@ -315,7 +315,13 @@ const response = await fetch('http://localhost:3001/assets/:node/para-id');
 const response = await fetch('http://localhost:3001/assets/:paraID?ecosystem=polkadot');
 
 //Retrieve a list of implemented Parachains
-const response = await fetch('http://localhost:3001/assets');
+const response = await fetch('http://localhost:3001/nodes');
+
+//Query list of node WS endpoints
+const response = await fetch('http://localhost:3001/ws-endpoints/:node ');
+
+//Query supported assets supported between two nodes
+const response = await fetch('http://localhost:3001/supported-assets?origin=:node&destination=:node');
 
 //Query native asset balance
 const response = await fetch("http://localhost:3001/balance/:node/native", {