readme: updated intro paragraph

README.md

@@ -13,7 +13,7 @@
 
 **Satellizer** is a simple to use, end-to-end, token-based authentication module
 for [AngularJS](http://angularjs.org) with built-in support for Google, Facebook,
-LinkedIn, Twitter, GitHub, Yahoo, Twitch, Microsoft OAuth providers, as well as Email
+LinkedIn, Twitter, Instagram, GitHub, Bitbucket, Yahoo, Twitch, Microsoft (Windows Live) OAuth providers, as well as Email
 and Password sign-in. However, you are not limited to the sign-in options above, in fact
 you can add any *OAuth 1.0* or *OAuth 2.0* provider by passing provider-specific information
 in the app *config* block.