Update 08.2.md

Jimmy99 · jameswpm · commit 58c34885f413 · 2016-09-27T16:13:43.000-03:00
typographical errors and improved readability
diff --git a/en/08.2.md b/en/08.2.md
@@ -14,7 +14,7 @@ WebSocket URLs begin with ws:// or wss://(SSL). The following figure shows the c
 
 ![](images/8.2.websocket.png?raw=true)
 
-Figure 8.2 WebSocket principl
+Figure 8.2 WebSocket principle
 
 ## WebSocket principles
 
@@ -99,7 +99,7 @@ As you can see, it's very easy to use the client side JavaScript functions to es
 
 - 1）onopen: triggered after connection has been established.
 - 2）onmessage: triggered after receiving a message.
-- 3）onerror: triggered after an error has occurred..
+- 3）onerror: triggered after an error has occurred.
 - 4）onclose: triggered after the connection has closed.
 
 Server code:
