Fix HISTORY.md v4.5.0 entry's format

HISTORY.md

@@ -9,8 +9,9 @@
 	- `CheckOrigin func(ctx *Context)`. Manually allow or dissalow client's websocket access, ex: via header **Origin**. Default allow all origins(CORS-like) as before.
 	- `Headers bool`. Allow websocket handler to copy request's headers on the handshake. Default is true
 	 With these in-mind the `WebsocketConfiguration` seems like this now :
-	 ```go
-	 type WebsocketConfiguration struct {
+	 
+```go
+type WebsocketConfiguration struct {
 	// WriteTimeout time allowed to write a message to the connection.
 	// Default value is 15 * time.Second
 	WriteTimeout time.Duration
@@ -49,8 +50,9 @@
 	// The default behavior is to allow all origins
 	// you can change this behavior by setting the iris.Config.Websocket.CheckOrigin = iris.WebsocketCheckSameOrigin
 	CheckOrigin func(ctx *Context) bool
-	 }
-	 ```
+}
+
+```
 
 - **REMOVE**: `github.com/kataras/iris/context/context.go` , this is no needed anymore. Its only usage was inside `sessions` and `websockets`, a month ago I did improvements to the sessions as a standalone package, the IContext interface is not being used there. With the today's changes, the iris-contrib/websocket doesn't needs the IContext interface too, so the whole folder `./context` is useless and removed now. Users developers don't have any side-affects from this change.