docs(README.md): add missing 'you' and a comma

Author: pevjan-block

README.md

@@ -1,11 +1,11 @@
 AngularJS
 =========
 
-AngularJS lets you write client-side web applications as if you had a smarter browser.  It lets use
-good old HTML (or HAML, Jade and friends!) as your template language and lets you extend HTML’s
+AngularJS lets you write client-side web applications as if you had a smarter browser.  It lets you
+use good old HTML (or HAML, Jade and friends!) as your template language and lets you extend HTML’s
 syntax to express your application’s components clearly and succinctly.  It automatically
 synchronizes data from your UI (view) with your JavaScript objects (model) through 2-way data
-binding. To help you structure your application better and make it easy to test AngularJS teaches
+binding. To help you structure your application better and make it easy to test, AngularJS teaches
 the browser how to do dependency injection and inversion of control. Oh yeah and it also helps with
 server-side communication, taming async callbacks with promises and deferreds; and make client-side
 navigation and deeplinking with hashbang urls or HTML5 pushState a piece of cake. The best of all: