Added info about mail settings

README.md

@@ -18,10 +18,10 @@ http://rubyforge.org/tracker/?atid=6303&group_id=1611&func=browse
 
 Requirements
 ------------
-The minimum requirements for running Boxroom are:
+The requirements for running Boxroom are:
 
  * Ruby 1.8.7 or Ruby 1.9.2 
- * Rails 3.0 or bigger
+ * Rails 3.0.x
  * A database (e.g. MySQL or SQLite)
 
 
@@ -37,6 +37,28 @@ Follow the these steps:
  6. Enjoy!
 
 
+Mail settings
+-------------
+Boxroom sends email when users want to reset their password or when they share files.
+For this to work, you have op to open `config/environments/production.rb`, uncomment
+the following lines and fill in the correct settings of your mail server:
+
+    # config.action_mailer.default_url_options = { :host => 'localhost:3000' }
+    # config.action_mailer.delivery_method = :smtp
+    # config.action_mailer.smtp_settings = {
+    #   :address => 'mailhost',
+    #   :port => 587,
+    #   :user_name => 'user_name',
+    #   :password => 'password',
+    #   :authentication => 'plain'
+    # }
+
+You also have to choose a from address for the emails that will be sent. You can do
+this by uncommenting and adjusting the following line:
+
+    # ActionMailer::Base.default :from => 'Boxroom <yourname@yourdomain.com>'
+
+
 Languages
 ---------
 Thanks to [Rob Halff](https://github.com/rhalff) and [Marcus Ilgner](https://github.com/milgner)