update some documents

Author: koddsson

docs/configs.md

@@ -10,12 +10,6 @@ This ESLint plugin comes with a few configuration presets. After installing the
 }
 ```
 
-When setting up a new project, it's recommended that you use the initialization to generate a customized ESLint config for the project.
-
-```sh
-$ node_modules/.bin/eslint-github-init
-```
-
 ## Available Configs
 
 ### `plugin:github/recommended`