chore: lint md files

pmmmwh · pmmmwh · commit 35e96cee01f6 · 2019-12-07T01:25:02.000+08:00
diff --git a/README.md b/README.md
@@ -70,7 +70,7 @@ module.exports = {
 
 ```json5
 {
-  "plugins": ["react-refresh/babel"]
+  plugins: ['react-refresh/babel'],
 }
 ```
 
