Add stylelint info to editor config doc

Author: inian

docs/how-to-configure-text-editors.md

@@ -31,20 +31,22 @@ Install atom packages
 
 * [linter](https://atom.io/packages/linter)
 * [linter-eslint](https://atom.io/packages/linter-eslint)
+* [linter-stylelint](https://atom.io/packages/linter-stylelint)
 * [react](https://atom.io/packages/react)
 
 ```shell
-apm install linter linter-eslint react
+apm install linter linter-eslint react linter-stylelint
 ```
 
 Install local npm packages
 
 * [eslint](https://www.npmjs.com/package/eslint)
 * [babel-eslint](https://www.npmjs.com/package/babel-eslint)
 * [eslint-plugin-react](https://www.npmjs.com/package/eslint-plugin-react)
+* [stylelint](https://www.npmjs.com/package/stylelint)
 
 ```shell
-npm install --save-dev eslint babel-eslint eslint-plugin-react
+npm install --save-dev eslint babel-eslint eslint-plugin-react stylelint
 ```
 
 *You may need to restart atom for changes to take effect*
@@ -57,6 +59,7 @@ Easiest with [Package Control](https://packagecontrol.io/) and then "Package Con
 * [Babel](https://packagecontrol.io/packages/Babel)
 * [Sublime-linter](http://www.sublimelinter.com/en/latest/)
 * [SublimeLinter-contrib-eslint](https://packagecontrol.io/packages/SublimeLinter-contrib-eslint)
+* [SublimeLinter-contrib-stylelint](https://packagecontrol.io/packages/SublimeLinter-contrib-stylelint)
 
 You can also use [SublimeLinter-contrib-eslint_d](https://packagecontrol.io/packages/SublimeLinter-contrib-eslint_d) for faster linting.
 
@@ -72,4 +75,5 @@ Install local npm packages
 npm install eslint@latest
 npm install babel-eslint@latest
 npm install eslint-plugin-react
+npm install stylelint
 ```