update docs

Author: egoist

docs/eslint.md

@@ -1,10 +1,3 @@
 # ESLint
 
-The default eslint config is [eslint-config-vue](https://github.com/vuejs/eslint-config-vue), but you can change it to anything you want in `.eslintrc`:
-
-```js
-{
-  // for example, change to:
-  "extends": "standard"
-}
-```
+The default eslint config is [eslint-config-vue](https://github.com/vuejs/eslint-config-vue), but you can change it to anything you want in `.eslintrc`.