Add readme.

README.md

@@ -0,0 +1,41 @@
+heroku sprunge
+==============
+
+*Roll your own sprunge on your domain*
+
+This is inspired by and shares some code with http://sprunge.us.
+
+This is a simple Flask app that uses Pygments to highlight the code.  It uses
+MongoDB to store the snippets.  Heroku gives you 240MB of MongoDB storage for
+free.  All you need is a free Heroku account and a bit of time.
+
+
+Setup
+-----
+
+    $ git clone git://github.com/honza/heroku-sprunge.git
+    $ cd heroku-sprunge
+    $ heroku create --stack cedar
+    $ heroku addons:add mongolab:starter
+    $ # Add settings: heroku config:add 
+    $ git push heroku master
+
+Env settings
+------------
+
+* `SPRUNGE_HOST` - the url where this will be hosted (no trailing slash)
+* `SPRUNGE_NAME` - the POST payload key
+* `SPRUNGE_MONGO_URI` - the MongoLab URL from Heroku (`heroku config | grep
+  mongo`)
+* `SPRUNGE_MONGO_DB_NAME` - the string after the last slash on
+  `SPRUNGE_MONGO_URI`
+
+
+Set these with:
+
+    $ heroku config:add KEY=VALUE
+
+License
+-------
+
+BSD, short and sweet.