docs(README): add missing comma in example (webpack#295)

CKGrafico · michael-ciniawsky · commit f512a209f9bb · 2017-10-03T20:06:03.000+02:00
diff --git a/README.md b/README.md
@@ -182,7 +182,7 @@ module.exports = ({ file, options, env }) => ({
 **webpack.config.js**
 ```js
 {
-  loader: 'postcss-loader'
+  loader: 'postcss-loader',
   options: {
     config: {
       ctx: {

Original file line number	Diff line number	Diff line change
`@@ -182,7 +182,7 @@ module.exports = ({ file, options, env }) => ({`
`182`	`182`	`webpack.config.js`
`183`	`183`	```js
`184`	`184`	`{`
`185`		`- loader: 'postcss-loader'`
	`185`	`+ loader: 'postcss-loader',`
`186`	`186`	`options: {`
`187`	`187`	`config: {`
`188`	`188`	`ctx: {`