chore: add sitemap and fetch metadata from GitHub

Author: hamzaremmal

Gemfile

@@ -16,6 +16,8 @@ gem "github-pages", group: :jekyll_plugins
 
 # If you have any plugins, put them here!
 group :jekyll_plugins do
+  gem 'jekyll-sitemap'
+  gem "jekyll-github-metadata"
   gem 'jekyll-redirect-from', "~> 0.16.0"
   #gem "jekyll-feed", "~> 0.6"
 end

_config.yml

@@ -11,11 +11,13 @@
 # you will see them accessed via {{ site.title }}, {{ site.email }}, and so on.
 # You can create any custom variable you would like, and they will be accessible
 # in the templates via {{ site.myvariable }}.
-baseurl: ""
-url    : "https://workshop.scala-lang.org"
+
+title: The Scala Workshop
 
 markdown: kramdown
 plugins:
+  - jekyll-github-metadata
+  - jekyll-sitemap
   - jekyll-redirect-from
 
 whitelist: