diff --git a/README.md b/README.md
index 59537c3..a9ff52f 100644
--- a/README.md
+++ b/README.md
@@ -6,17 +6,5 @@ This is a GO portation from the original [ydcv in python](https://github.com/fel
 
 This project is a practise during the study of Go (newbie work in 100 lines). If you have any idea improving this project, pull request is welcomed.
 
-# Config
-
-User need to apply for his own service API key from [有道智云](https://ai.youdao.com).
-Keys writted to a config file `.ydgo`, put at `HOME` dir, or `%USERPROFILE%` for windows.
-
-Example:
-```
-$ cat ~/.ydgo
-YDAPPID="123456"
-YDAPPSEC="abcd1234"
-```
-
 ## Environment:
  * Any OS that GO supports (windows, linux, freebsd, darwin ...)