Upgrade to just-the-docs theme for modern and professional look

Author: byerlikaya

docs/Gemfile

@@ -1,16 +1,17 @@
 source "https://rubygems.org"
 
-gem "jekyll", "~> 4.0.0"
-gem "minima", "~> 2.5"
+gem "jekyll", "~> 4.3.0"
+gem "just-the-docs", "~> 0.7.3"
 
 group :jekyll_plugins do
-  gem "jekyll-feed", "~> 0.12"
+  gem "jekyll-remote-theme"
 end
 
 # Windows compatibility
 platforms :mingw, :x64_mingw, :mswin do
   gem "tzinfo", ">= 1"
   gem "tzinfo-data"
+  gem "wdm", "~> 0.1.1"
 end
 
 # Webrick for Ruby 3.0+

docs/_config.yml

@@ -3,10 +3,10 @@ description: A powerful and intelligent RAG library for .NET applications
 baseurl: ""
 url: "https://byerlikaya.github.io"
 
-# Jekyll settings
-theme: minima
+# GitHub Pages settings
+remote_theme: just-the-docs/just-the-docs
 plugins:
-  - jekyll-feed
+  - jekyll-remote-theme
 
 # Build settings
 markdown: kramdown