diff --git a/Dota_on_Rails/Gemfile b/Dota_on_Rails/Gemfile
index 042665b..aa5ecef 100644
--- a/Dota_on_Rails/Gemfile
+++ b/Dota_on_Rails/Gemfile
@@ -18,6 +18,11 @@ group :development do
   gem 'pry-rails'
 end
 
+group :production do
+  gem 'rails_12factor'
+  gem 'pg'
+end
+
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 5.0'
 # Use Uglifier as compressor for JavaScript assets
@@ -29,27 +34,6 @@ gem 'coffee-rails', '~> 4.1.0'
 gem 'jquery-rails'
 # Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
 gem 'turbolinks'
-# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
-gem 'jbuilder', '~> 2.0'
-# bundle exec rake doc:rails generates the API under doc/api.
-gem 'sdoc', '~> 0.4.0', group: :doc
-
-# Use ActiveModel has_secure_password
-# gem 'bcrypt', '~> 3.1.7'
-
-# Use Unicorn as the app server
-# gem 'unicorn'
-
-# Use Capistrano for deployment
-# gem 'capistrano-rails', group: :development
-
-group :development, :test do
-  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
-  gem 'byebug'
-
-  # Access an IRB console on exception pages or by using <%= console %> in views
-  gem 'web-console', '~> 2.0'
-end
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
diff --git a/Dota_on_Rails/Gemfile.lock b/Dota_on_Rails/Gemfile.lock
index 95bbc4f..617fe2b 100644
--- a/Dota_on_Rails/Gemfile.lock
+++ b/Dota_on_Rails/Gemfile.lock
@@ -61,8 +61,6 @@ GEM
       autoprefixer-rails (>= 5.0.0.1)
       sass (>= 3.2.19)
     builder (3.2.2)
-    byebug (4.0.5)
-      columnize (= 0.9.0)
     coderay (1.1.0)
     coffee-rails (4.1.0)
       coffee-script (>= 2.2.0)
@@ -71,7 +69,6 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.9.1.1)
-    columnize (0.9.0)
     daemons (1.2.2)
     debug_inspector (0.0.2)
     erubis (2.7.0)
@@ -85,9 +82,6 @@ GEM
       activesupport (>= 4.1.0)
     hashie (3.4.1)
     i18n (0.7.0)
-    jbuilder (2.2.13)
-      activesupport (>= 3.0.0, < 5)
-      multi_json (~> 1.2)
     jquery-rails (4.0.3)
       rails-dom-testing (~> 1.0)
       railties (>= 4.2.0)
@@ -114,6 +108,7 @@ GEM
     omniauth-steam (1.0.3)
       multi_json
       omniauth-openid
+    pg (0.18.1-x86-mingw32)
     pry (0.10.1-x86-mingw32)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
@@ -146,14 +141,17 @@ GEM
       rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.0.2)
       loofah (~> 2.0)
+    rails_12factor (0.0.3)
+      rails_serve_static_assets
+      rails_stdout_logging
+    rails_serve_static_assets (0.0.4)
+    rails_stdout_logging (0.0.3)
     railties (4.2.1)
       actionpack (= 4.2.1)
       activesupport (= 4.2.1)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (10.4.2)
-    rdoc (4.2.0)
-      json (~> 1.4)
     ruby-openid (2.7.0)
     sass (3.4.13)
     sass-rails (5.0.3)
@@ -162,9 +160,6 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (~> 1.1)
-    sdoc (0.4.1)
-      json (~> 1.7, >= 1.7.7)
-      rdoc (~> 4.0)
     slop (3.6.0)
     sprockets (3.0.1)
       rack (~> 1.0)
@@ -189,11 +184,6 @@ GEM
     uglifier (2.7.1)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
-    web-console (2.1.2)
-      activemodel (>= 4.0)
-      binding_of_caller (>= 0.7.2)
-      railties (>= 4.0)
-      sprockets-rails (>= 2.0, < 4.0)
     win32console (1.3.2-x86-mingw32)
 
 PLATFORMS
@@ -204,19 +194,17 @@ DEPENDENCIES
   better_errors
   binding_of_caller
   bootstrap-sass
-  byebug
   coffee-rails (~> 4.1.0)
   dota!
-  jbuilder (~> 2.0)
   jquery-rails
   omniauth-steam
+  pg
   pry-rails
   rails (= 4.2.1)
+  rails_12factor
   sass-rails (~> 5.0)
-  sdoc (~> 0.4.0)
   sqlite3
   thin
   turbolinks
   tzinfo-data
   uglifier (>= 1.3.0)
-  web-console (~> 2.0)
diff --git a/Dota_on_Rails/Procfile b/Dota_on_Rails/Procfile
new file mode 100644
index 0000000..ca35301
--- /dev/null
+++ b/Dota_on_Rails/Procfile
@@ -0,0 +1 @@
+web: bundle exec rails server thin -p $PORT -e $RACK_ENV
diff --git a/Dota_on_Rails/README.md b/Dota_on_Rails/README.md
new file mode 100644
index 0000000..4c996c2
--- /dev/null
+++ b/Dota_on_Rails/README.md
@@ -0,0 +1,8 @@
+Source code for the []() article on
+SitePoint,
+created by Ilya Bodrov ([radiant-wind.com](http://radiant-wind.com)).
+
+[Working demo]().
+
+
+
diff --git a/Dota_on_Rails/README.rdoc b/Dota_on_Rails/README.rdoc
deleted file mode 100644
index dd4e97e..0000000
--- a/Dota_on_Rails/README.rdoc
+++ /dev/null
@@ -1,28 +0,0 @@
-== README
-
-This README would normally document whatever steps are necessary to get the
-application up and running.
-
-Things you may want to cover:
-
-* Ruby version
-
-* System dependencies
-
-* Configuration
-
-* Database creation
-
-* Database initialization
-
-* How to run the test suite
-
-* Services (job queues, cache servers, search engines, etc.)
-
-* Deployment instructions
-
-* ...
-
-
-Please feel free to use a different markup language if you do not plan to run
-<tt>rake doc:app</tt>.