Updated readme

README.md

@@ -67,38 +67,82 @@ $http->listen($socket);
 
 #### connection
 
+```php
+function (WebSocketInterface $member)
+```
+
 This event is emitted when a new WebSocket request has been accepted. The `WebSocketConnection` is passed as the first argument.
 
 ### WebSocketConnection events
 
 #### ping
 
+```php
+function (string $payload)
+```
+
 This event will be emitted upon receiving a frame with a ping opcode. The pong response has already been sent automatically, unless 'no_auto_pong' is set in the context.
 
 #### pong
 
+```php
+function (string $payload)
+```
+
 This event will be emitted upon receiving a frame with a pong opcode.
 
 #### text
 
+```php
+function (string $payload)
+```
+
 This event will be emitted when a text data frame have been received and decoded.
 
 #### binary
 
+```php
+function (string $payload)
+```
+
 This event will be emitted when a binary data frame have been received and decoded.
 
 #### close
 
+```php
+function ()
+```
+
 #### error
 
+```php
+function (?string $reason, ?int $code)
+```
+
 ### GroupManager events
 
-### create
+#### create
 
-### destroy
+```php
+function (ConnectionGroup $group)
+```
+
+#### destroy
+
+```php
+function (ConnectionGroup $group)
+```
 
 ### ConnectionGroup events
 
-### join
+#### join
 
-### leave
+```php
+function (WebSocketInterface $member)
+```
+
+#### leave
+
+```php
+function (WebSocketInterface $member)
+```