Updated Whisper Push Notifications (markdown)

Whisper-Push-Notifications.md

@@ -56,6 +56,8 @@ Original workflow for discovery mechanism was introduced in:
 
 [![image](https://cloud.githubusercontent.com/assets/188194/24608168/19317cdc-187e-11e7-995e-2adadc17a91c.png)](https://cloud.githubusercontent.com/assets/188194/24608168/19317cdc-187e-11e7-995e-2adadc17a91c.png)
 
+### 1. Discovery request and Notification Server selection
+
 Everything starts with `Device A` willing to register with some Notification Service Provider. To do so, it sends/broadcasts discovery request:
 
 ```js
@@ -113,8 +115,31 @@ watchProposeServerResponses(identity);
 ```
 Now, whenever we receive server proposal and willing to accept it, `sendAcceptServerRequest()` message needs to be broadcasted (so that server knows we have selected it):
 
-# Sharing the key
+```js
+var acceptServerTopic = '0x04f7dea6'; // ACCEPT_NOTIFICATION_SERVER
+var sendAcceptServerRequest = function (identity, serverID) {
+    // whenever we are ready to accept server, having a given serverID, we need
+    // to notify it by sending signed (from us) acceptance message.
+    var err = web3.shh.post({
+        from: identity, // it is absolutely important to identify the client, or your acceptance will be dropped
+        topics: [acceptServerTopic],
+        payload: '{"server": "' + serverID + '"}',
+        ttl: 20,
+        keyname: keyname
+    });
+    if (err !== null) {
+        console.log("message NOT sent")
+    } else {
+        console.log("message sent OK")
+    }
+};
+```
 
-# One-to-One Chats
+### 2. Creating Chat session and registering device
 
-# Grop Chats
+### 3. Sharing Chat session key, and allowing notifications
+
+
+# Implementation notes I: One-to-One Chats
+
+# Implementation notes II: Group Chats