fixed docs

Signed-off-by: Vishal Rana <vr@labstack.com>

echo.go

@@ -9,10 +9,7 @@ Example:
     "net/http"
 
     "github.com/labstack/echo"
-	    "github.com/labstack/echo/engine/standard"
     "github.com/labstack/echo/middleware"
-	"net"
-	"net"
   )
 
   // Handler

website/content/godoc/engine.md

@@ -1,8 +0,0 @@
-+++
-title = "engine"
-[menu.side]
-  name = "engine"
-  parent = "godoc"
-  weight = 3
-  url = "https://godoc.org/github.com/labstack/echo/engine"
-+++

website/content/godoc/fasthttp.md

@@ -1,8 +0,0 @@
-+++
-title = "fasthttp"
-[menu.side]
-  name = "engine/fasthttp"
-  parent = "godoc"
-  weight = 5
-  url = "https://godoc.org/github.com/labstack/echo/engine/fasthttp"
-+++

website/content/godoc/middleware.md

@@ -4,6 +4,6 @@ title = "middleware"
   name = "middleware"
   identifier = "godoc-middleware"
   parent = "godoc"
-  weight = 1
+  weight = 2
   url = "https://godoc.org/github.com/labstack/echo/middleware"
 +++

website/content/godoc/standard.md

@@ -1,8 +0,0 @@
-+++
-title = "standard"
-[menu.side]
-  name = "engine/standard"
-  parent = "godoc"
-  weight = 4
-  url = "https://godoc.org/github.com/labstack/echo/engine/standard"
-+++

website/content/guide/context.md

@@ -12,8 +12,8 @@ description = "Context in Echo"
 
 `echo.Context` represents the context of the current HTTP request. It holds request and
 response reference, path, path parameters, data, registered handler and APIs to read
-request and write response. Context is 100% compatible with standard `context.Context`.
-As Context is an interface, it is easy to extend it with custom APIs.
+request and write response. As Context is an interface, it is easy to extend it with
+custom APIs.
 
 #### Extending Context
 
@@ -56,20 +56,3 @@ e.GET("/", func(c echo.Context) error {
 	return cc.String(200, "OK")
 })
 ```
-
-### Standard Context
-
-`echo.Context` embeds standard `context.Context` interface, so all it's functions
-are available right from `echo.Context`.
-
-*Example*
-
-```go
-e.GET("/users/:name", func(c echo.Context) error) {
-    c.SetContext(context.WithValue(nil, "key", "val"))
-    // Pass it down...
-    // Use it...
-    val := c.Value("key").(string)
-    return c.String(http.StatusOK, name)
-})
-```