Update lib size

Author: JMPerez

README.md

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 # Spotify Web API JS [![Build Status](https://travis-ci.org/JMPerez/spotify-web-api-js.svg?branch=master)](https://travis-ci.org/JMPerez/spotify-web-api-js) [![Coverage Status](https://coveralls.io/repos/JMPerez/spotify-web-api-js/badge.svg)](https://coveralls.io/r/JMPerez/spotify-web-api-js) [![Greenkeeper badge](https://badges.greenkeeper.io/JMPerez/spotify-web-api-js.svg)](https://greenkeeper.io/)
 
-This is a lightweight wrapper for the [Spotify Web API](https://developer.spotify.com/web-api/) ([2.4kB gzipped + compressed](https://cost-of-modules.herokuapp.com/result?p=spotify-web-api-js)). It includes helper functions for **all Spotify's endpoints**, such as fetching metadata (search and look-up of albums, artists, tracks, playlists, new releases, podcasts) and user's information (follow users, artists and playlists, and saved tracks management).
+This is a lightweight wrapper for the [Spotify Web API](https://developer.spotify.com/web-api/) ([2.6kB gzipped + compressed](https://cost-of-modules.herokuapp.com/result?p=spotify-web-api-js)). It includes helper functions for **all Spotify's endpoints**, such as fetching metadata (search and look-up of albums, artists, tracks, playlists, new releases, podcasts) and user's information (follow users, artists and playlists, and saved tracks management).
 
 It doesn't have any dependencies and supports callbacks and promises. It is intended to be run on a browser, but if you want to use Node.JS to make the requests, please check [spotify-web-api-node](https://github.com/thelinmichael/spotify-web-api-node).