v 1.2.4 minor README changes

README.md

 
 const echo = (x) => x
 
-const server = new Backend.RPCServer(20000, [{
+const server = new Backend.RPCServer(port, [{
     name: 'HelloWorldRPCGroup',
     exportRPCs: ()  => [
         echo, //named function variable
     ]
 }])
 
-const client = new Frontend.RPCSocket(20000, 'localhost')
+const client = new Frontend.RPCSocket(port, host)
 
 client.connect().then(async () => {
     const r0 = await client['HelloWorldRPCGroup'].echo('Hello')
 
 const callbacks:Map<string, Function> = new Map()
 
-const server = new Backend.RPCServer(20000, [{
+const server = new Backend.RPCServer(port, [{
     name: 'HelloWorldRPCGroup',
     exportRPCs: ()  => [
         function  triggerCallbacks(...messages){ callbacks.forEach(cb => cb.apply({}, messages)) },
     ]
 }])
 
-const client = new Frontend.RPCSocket(20000, 'localhost')
+const client = new Frontend.RPCSocket(port, host)
 client.connect().then(async () => {
     const res = await client['HelloWorldRPCGroup'].subscribe(async (...args:any) => {
         console.log.apply(console, args)
 If you need to include further response data into your `SubscriptionResponse` you can extend it using the server's first generic parameter `SubResType`
 
 ```typescript
-new RPCServer<{extension: string}>({
+new RPCServer<{extension: string}>(port, {
     name: 'MyRPCGroup',
     exportRPCs: ()  => [{
         name: 'subscribe',
 
 /* OR */
 
-const client = new Frontend.RPCSocket(20000, 'localhost')
+const client = new Frontend.RPCSocket(port, host)
 client.connect<MyInterface>().then((async (client) => {
     const r = await client.Group2.echo("hee") //tsc knows about available RPCs 
 })) 
 
 Create a server using
 ```typescript
-new RPCServer<{a:string}, MyInterface>(20001, 
+new RPCServer<{a:string}, MyInterface>(port, 
     [{
         //...
     },{

package.json

 {
   "name": "rpclibrary",
-  "version": "1.2.3",
+  "version": "1.2.4",
   "description": "rpclibrary is a websocket on steroids!",
   "main": "./js/Index.js",
   "repository": {