Update README

@@ -10,8 +10,8 @@ you can use Get to crawl data.
 	
 	str, err := httplib.Get("http://beego.me/").String()
 	if err != nil {
-                // error
-        }
+        	// error
+	}
 	fmt.Println(str)
 	
 ## POST
@@ -22,8 +22,8 @@ POST data to remote url
 	req.Param("password","123456")
 	str, err := req.String()
 	if err != nil {
-                // error
-        }
+        	// error
+	}
 	fmt.Println(str)
 
 ## Set timeout
@@ -32,7 +32,8 @@ The default timeout is `60` seconds, function prototype:
 
 	SetTimeout(connectTimeout, readWriteTimeout time.Duration)
 
-Exmaple: 
+Exmaple:
+
 	// GET
 	httplib.Get("http://beego.me/").SetTimeout(100 * time.Second, 30 * time.Second)
 	
@@ -49,10 +50,10 @@ If you want to debug the request info, set the debug on
 ## Set HTTP Basic Auth
 
 	str, err := Get("http://beego.me/").SetBasicAuth("user", "passwd").String()
-        if err != nil {
-                // error
-        }
-        fmt.Println(str)
+	if err != nil {
+        	// error
+	}
+	fmt.Println(str)
 	
 ## Set HTTPS
 
@@ -67,7 +68,7 @@ More info about the `tls.Config` please visit http://golang.org/pkg/crypto/tls/#
 some servers need to specify the protocol version of HTTP
 
 	httplib.Get("http://beego.me/").SetProtocolVersion("HTTP/1.1")
-		
+	
 ## Set Cookie
 
 some http request need setcookie. So set it like this:
@@ -86,8 +87,8 @@ httplib support mutil file upload, use `req.PostFile()`
 	req.PostFile("uploadfile1", "httplib.pdf")
 	str, err := req.String()
 	if err != nil {
-                // error
-        }
+        	// error
+	}
 	fmt.Println(str)