update docs to reflect new changes

docs/recipes/using-multiple-sources-in-one-task.md

@@ -7,41 +7,26 @@ var gulp = require('gulp');
 var merge = require('merge-stream');
 
 gulp.task('test', function(cb) {
-    return merge(
-        gulp.src('bootstrap/js/*.js')
-            .pipe(gulp.dest('public/bootstrap')),
-        gulp.src('jquery.cookie/jquery.cookie.js')
-            .pipe(gulp.dest('public/jquery'))
-    );
+  var bootstrap = gulp.src('bootstrap/js/*.js')
+    .pipe(gulp.dest('public/bootstrap'));
+
+  var jquery = gulp.src('jquery.cookie/jquery.cookie.js')
+    .pipe(gulp.dest('public/jquery'));
+
+  return merge(bootstrap, jquery);
 });
 ```
 
-When streams should be emitting files in order they were added:
+gulp.src will emit files in the order they were added:
 
 ```js
 // npm install gulp gulp-concat streamqueue
 
 var gulp = require('gulp');
 var concat = require('gulp-concat');
-var streamqueue = require('streamqueue');
-
-gulp.task('default', function() {
-    return streamqueue({ objectMode: true },
-        gulp.src('foo/*'),
-        gulp.src('bar/*')
-    )
-        .pipe(concat('result.txt'))
-        .pipe(gulp.dest('build'));
-});
-
-// ... or ...
 
 gulp.task('default', function() {
-    var stream = streamqueue({ objectMode: true });
-    stream.queue(gulp.src('foo/*'));
-    stream.queue(gulp.src('bar/*'));
-    return stream.done()
-        .pipe(concat('result.txt'))
-        .pipe(gulp.dest('build'));
+  return gulp.src(['foo/*', 'bar/*'])
+    .pipe(concat('result.txt'))
+    .pipe(gulp.dest('build'));
 });
-```