anchor.diff:  						p The encryption key to use for your cookies. Passed to Express's cookie parser.
   						p It's a really good idea to set this to a long, random string.
   				tr
  +					td <code>session store</code> <code class="data-type">String</code>
  +					td
  +						p Set this to <code class="default-value">mongo</code> to use your database to persist session data.
  +						p By default, Keystone will use the in-memory session store provided by Express, which should only be used in development because it does not scale past a single process, and leaks memory over time.
  +				tr
   					td <code>back url</code> <code class="data-type">String</code>
   					td
   						p <code>href</code> to use for the 'back to (site name)' link in the header of the Admin UI
  
positive.code: 			pre: code.language-javascript
  				| var keystone = require('keystone'),
  				|     User = keystone.list('User');
  				| 
  				| exports = module.exports = function(done) {
  				|     new User.model({
  				|         name: { first: 'Admin', last: 'User' },
  
negative.code: 			
  			pre: code.language-javascript
  				| keystone.set('cloudinary config', { cloud_name: 'my-cloud', api_key: 'abc', api_secret: '123' });
  				| // or
  				| keystone.set('cloudinary config', 'cloudinary://api_key:api_secret@cloud_name' );
  				|
  				| // optional, will prefix all built-in tags with 'keystone_'
  				| keystone.set('cloudinary prefix', 'keystone');
  			
  