Add disableHostCheck to work in CodeSandbox (#9)

Author: andrasbacsai

styleguide.config.js

@@ -2,6 +2,10 @@ module.exports = {
 	title: 'React Style Guide Example',
 	defaultExample: true,
 	webpackConfig: {
+		devServer: {
+			// Docs: https://codesandbox.io/docs/environment#how-can-i-tell-if-i-am-in-a-container-sandbox
+			disableHostCheck: !!process.env.CODESANDBOX_SSE,
+		},
 		module: {
 			rules: [
 				{