Combine Google Fonts for Web Performance

We can increase web performance by combining google font css.

We use to write like these:

<link rel="stylesheet" href='http://fonts.googleapis.com/css?family=Lato' />
<link rel="stylesheet" href='http://fonts.googleapis.com/css?family=Poppins:400,600,700' />

Now we can write like this:

<link rel="stylesheet" href='http://fonts.googleapis.com/css?family=Lato|Poppins:400,600,700' />