add docs for jscs.reporter()

Author: sindresorhus

readme.md

@@ -1,10 +1,10 @@
 # gulp-jscs [![Build Status](https://travis-ci.org/jscs-dev/gulp-jscs.svg?branch=master)](https://travis-ci.org/jscs-dev/gulp-jscs)
 
-> Check JavaScript code style with [`jscs`](http://jscs.info)
+> Check JavaScript code style with [JSCS](http://jscs.info)
 
 ![](screenshot.png)
 
-*Issues with the output should be reported on the `jscs` [issue tracker](https://github.com/jscs-dev/node-jscs/issues).*
+*Issues with the output should be reported on the JSCS [issue tracker](https://github.com/jscs-dev/node-jscs/issues).*
 
 
 ## Install
@@ -19,26 +19,25 @@ $ npm install --save-dev gulp-jscs
 ### Reporting
 
 ```js
-var gulp = require('gulp');
-var jscs = require('gulp-jscs');
+const gulp = require('gulp');
+const jscs = require('gulp-jscs');
 
-gulp.task('default', function () {
+gulp.task('default', () => {
 	return gulp.src('src/app.js')
-		.pipe(jscs());
+		.pipe(jscs())
+		.pipe(jscs.reporter());
 });
 ```
 
-### Fixing & reporting
+### Fixing
 
 ```js
-var gulp = require('gulp');
-var jscs = require('gulp-jscs');
+const gulp = require('gulp');
+const jscs = require('gulp-jscs');
 
-gulp.task('default', function () {
+gulp.task('default', () => {
 	return gulp.src('src/app.js')
-		.pipe(jscs({
-			fix: true
-		}))
+		.pipe(jscs({fix: true}))
 		.pipe(gulp.dest('src'));
 });
 ```
@@ -69,14 +68,21 @@ A `jscs` object will be attached to the file object which can be used for custom
 
 #### options
 
-Type: `object`
-
-See the `jscs` [options](http://jscs.info/overview.html#options).
+See the JSCS [options](http://jscs.info/overview.html#options).
 
 Alternatively you can set the `configPath` *(default: `'.jscsrc'`)* option to the path of a [.jscsrc](http://jscs.info/rules.html) file.
 
 Set `fix: true` if you want jscs to attempt to auto-fix your files. Be sure to pipe to `gulp.dest` if you use this option.
 
+### jscs.reporter([reporter])
+
+See the JSCS [reporter docs](http://jscs.info/overview#-reporter-r) for supported input.
+
+This plugin also ships with some custom reporters:
+
+- `fail` - Emits an error at the end of the stream if there are lint errors.
+- `failImmediately` - Emits an error immediately if there are lint errors.
+
 
 ## License