README.md in jekyll-theme-open-project-2.0.10 vs README.md in jekyll-theme-open-project-2.0.11

@@ -62,12 +62,15 @@
 (The SEO tag plugin is not mandatory, but these docs assume you use it.)
 
 ```ruby
 group :jekyll_plugins do
   gem "jekyll-seo-tag"
+  gem "jekyll-sitemap"
   gem "jekyll-data"
   gem "jekyll-asciidoc"
+
   gem "jekyll-theme-open-project-helpers"
+
   # ...other plugins, if you use any
 end
 ```
 
 Execute the following to install dependencies: