Add new intro blurb to README

README.md

@@ -3,7 +3,7 @@
 [![Build Status](https://travis-ci.org/cfpb/django-flags.svg?branch=master)](https://travis-ci.org/cfpb/django-flags)
 [![Coverage Status](https://coveralls.io/repos/github/cfpb/django-flags/badge.svg?branch=master)](https://coveralls.io/github/cfpb/django-flags?branch=master)
 
-Feature flags allow you to toggle functionality in both Django settings and the Django admin based on configurable conditions.
+Feature flags allow you to toggle functionality in both Django code and the Django templates based on configurable conditions. Flags can be useful for staging feature deployments, for A/B testing, or for any time you need an on/off switch for blocks of code. The toggle can be by date, user, URL value, or a number of [other conditions](https://cfpb.github.io/django-flags/conditions/), editable in the admin or in definable in settings.
 
 - [Dependencies](#dependencies)
 - [Installation](#installation)
@@ -38,7 +38,7 @@ pip install django-flags
 
 ## Documentation
 
-https://cfpb.github.io/django-flags is the full reference for Django-Flags, and includes how to get started, general usage, and an API reference. 
+https://cfpb.github.io/django-flags is the full documentation for Django-Flags, and includes how to get started, general usage, and an API reference. 
 
 ## Getting help