Gofmt the example usage

README.md

@@ -6,31 +6,35 @@ Negroni middleware/handler to enable CORS support.
 ## Usage
 
 ~~~go
+package main
+
 import (
-       "github.com/codegangsta/negroni"
-       "github.com/hariharan-uno/cors"
+	"net/http"
+
+	"github.com/codegangsta/negroni"
+	"github.com/hariharan-uno/cors"
 )
 
 func main() {
-     n := negroni.Classic()
+	n := negroni.Classic()
 
-     // CORS for https://*.foo.com origins, allowing:
-     // - GET and POST methods
-     // - Origin header 
-     opts := cors.Options{
-     	  AllowOrigins:    []string{"https://*.foo.com"},
-	  AllowMethods:    []string{"GET", "POST"},
-	  AllowHeaders:	   []string{"Origin"},
-     }
+	// CORS for https://*.foo.com origins, allowing:
+	// - GET and POST methods
+	// - Origin header
+	options := cors.Options{
+		AllowOrigins: []string{"https://*.foo.com"},
+		AllowMethods: []string{"GET", "POST"},
+		AllowHeaders: []string{"Origin"},
+	}
 
-     n.Use(negroni.HandlerFunc(opts.Allow))
+	n.Use(negroni.HandlerFunc(options.Allow))
 
-     mux := http.NewServeMux()
-     // map your routes
+	mux := http.NewServeMux()
+	// map your routes
 
-     n.UseHandler(mux)
+	n.UseHandler(mux)
 
-     n.Run(":3000")
+	n.Run(":3000")
 }
 ~~~