README.md in rails-settings-cached-2.1.1 vs README.md in rails-settings-cached-2.2.0

@@ -48,10 +48,11 @@
   # cache_prefix { "v1" }
 
   field :host, default: "http://example.com"
   field :readonly_item, type: :integer, default: 100, readonly: true
   field :user_limits, type: :integer, default: 20
+  field :exchange_rate, type: :float, default: 0.123
   field :admin_emails, type: :array, default: %w[[e-mail]]
   # Override array separator, default: /[\n,]/ split with \n or comma.
   field :tips, type: :array, separator: /[\n]+/
   field :captcha_enable, type: :boolean, default: 1
   field :notification_options, type: :hash, default: {
@@ -210,22 +211,17 @@
 ```rb
 module Admin
   class SettingsController < ApplicationController
     before_action :get_setting, only: [:edit, :update]
 
-    def show
-    end
-
     def create
       setting_params.keys.each do |key|
-        next if key.to_s == "site_logo"
         Setting.send("#{key}=", setting_params[key].strip) unless setting_params[key].nil?
       end
-      redirect_to admin_settings_path(notice: "Setting was successfully updated.")
+      redirect_to settings_path, notice: "Setting was successfully updated."
     end
 
-
     private
       def setting_params
         params.require(:setting).permit(:host, :user_limits, :admin_emails,
           :captcha_enable, :notification_options)
       end
@@ -257,11 +253,12 @@
   <div class="form-group">
     <label class="control-label">Notification options</label>
     <%= f.text_area :notification_options, value: YAML.dump(Setting.notification_options), class: "form-control", style: "height: 180px;"  %>
     <div class="form-text">
       Use YAML format to config the SMTP_html
-    </details>
+    </div>
+  </div>
 <% end %>
 ```
 
 ##  Backward compatible to support 0.x scoped settings
 
@@ -329,10 +326,9 @@
 @user.foo # =>
 ```
 
 ## Use cases:
 
-- [ruby-china/ruby-china](https://github.com/ruby-china/ruby-china)
+- [ruby-china/homeland](https://github.com/ruby-china/homeland)
 - [thebluedoc/bluedoc](https://github.com/thebluedoc/bluedoc/blob/master/app/models/setting.rb)
 - [tootsuite/mastodon](https://github.com/tootsuite/mastodon)
 - [helpyio/helpy](https://github.com/helpyio/helpy)
-