update deployment instructions [ci skip]

doc/DEPLOYMENT.md

@@ -2,25 +2,40 @@ Deployment
 =========
 
 Setup
---------
+-----
 
+1. Initialise your [Capistrano](http://capistranorb.com/) setup
+
+      ```sh
+      bundle exec cap install
+      sed -i 's|^# \(require.*rails.*\)|\1|' Capfile
       cp config/deploy.rb.SAMPLE config/deploy.rb
-    touch config/deploy/staging.rb
+      ```
-    touch config/deploy/production.rb
+
+   When you're using [RVM](http://rvm.io/) on the server you may want to
+   uncomment the corresponding line in `Capfile`.
+
+2. Adapt your configuration in `config/deploy.rb` and `config/deploy/*.rb`
 
 
 Deploy
---------
+------
 
-On your first deploy you should run
+On your first deploy you should run (choose either staging or production)
 
-    bundle exec cap deploy:setup
+    bundle exec cap staging deploy:check
-    bundle exec cap deploy:check
+
+This will fail, which is ok, because there is no configuration yet. On your
+server, there is a directory `shared/config` for each installation, which
+contains the configuration. Create `database.yml`, `app_config.yml` and
+`initializers/secret_token.rb` and try again.
+(See `lib/capistrano/tasks/deploy_initial.cap` for a way to automate this.)
 
 Deploy to staging
 
-    bundle exec cap deploy
+    bundle exec cap staging deploy
 
 Deploy to production
 
     bundle exec cap production deploy
+