updating some timer docs

README.md

@@ -15,6 +15,10 @@
 A distributed reliable timer service providing similar functionality to using `setTimeout`.
 `Skyring` servers are clustered  into a *hashring* using consistent hashing to partition timers to specific nodes in the ring.  Skyring exposes a simple HTTP API That allows to you create and cancel timers. Timer execution comes in to the form of an HTTP webhook ( more transports to come )
 
+# Architechture Overview 
+
+<img src="https://raw.githubusercontent.com/esatterwhite/skyring/master/assets/skyring-arch.png" width="100%" max-width="800px">
+
 # Install
 
 ```

lib/server/index.js

@@ -83,7 +83,7 @@ class Server extends http.Server {
     this._timers = new Timer({nats: this.options.nats});
     this._router = new Router(this._node, this._timers);
     this._node.on('ringchange', (evt) => {
-      this._timers.rebalance(evt, this._node, (data) => {
+      this._timers.rebalance(evt, (data) => {
         this.proxy(data);
       });
     });

lib/timer.js

@@ -51,11 +51,31 @@ class Timer extends Map {
    * @param {Object} body Configuration options for the timer instance
    * @param {Number} body.timeout Duration in milisecods to delay execution of the timer
    * @param {String} body.data The data to be assicated with the timer, when it is executed
+   * @param {Number} [body.created=Date.now()] timestamp when the timer is created. if not set, will default to now
    * @param {Object} callback Options for the outbound transport for the timer when it executes
    * @param {String} callback.transport The transport type ( http, etc )
    * @param {String} transport.method The method the transport should use when executing the timer
    * @param {String} transport.uri The target uri for the transport when the timer executes 
    * @param {Nodeback} callback
+   * @example
+const crypto = require('crypto')
+id = crypto.createHash('sha1')
+           .update(crypto.randomBytes(10))
+           .digest('hex')
+
+const options = {
+  timeout: 4000
+, data: "this is a payload"
+, callback: {
+    transport: 'http'
+  , method: 'put
+  , uri: 'http://api.domain.com/callback'
+  }
+}
+
+timers.create(id, options, (err) => {
+  if (err) throw err
+})
    **/
   create(id, body, cb) {
     const payload = body;
@@ -118,7 +138,7 @@ class Timer extends Map {
     cb && setImmediate(cb, null);
   }
 
-  rebalance(opts, node, cb) {
+  rebalance(opts, cb) {
     const callback = cb || noop
         , size = this.size
         ;