Update gemfile

Author: sylhare

.github/workflows/docker-build.yml

@@ -12,8 +12,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        # The jekyll/builder is used by GitHub pages
-        docker-image: [ 'jekyll/builder', 'sylhare/jekyll' ]
+        # The jekyll/builder was replaced by the action jekyll-build-pages
+        docker-image: [ 'sylhare/jekyll' ]
 
     steps:
       - uses: actions/checkout@v4

Gemfile

@@ -1,9 +1,9 @@
 source "https://rubygems.org"
-gemspec
 
 # Should be included in Jekyll but depending on the version Jekyll and Ruby version, it may not be included
-# gem 'webrick'
-# gem 'kramdown-parser-gfm'
+gem 'webrick'
+gem 'kramdown-parser-gfm'
 
 # For github pages compatibility
 # gem 'github-pages', group: :jekyll_plugins
+gemspec