Change import statements accordingly

handlers/get_instance_images.go

@@ -4,11 +4,10 @@ import (
 	"encoding/json"
 	"net/http"
 
-	"github.com/franela/play-with-docker/services"
+	"github.com/play-with-docker/play-with-docker/services"
 )
 
 func GetInstanceImages(rw http.ResponseWriter, req *http.Request) {
 	instanceImages := services.InstanceImages()
 	json.NewEncoder(rw).Encode(instanceImages)
 }
-