revert Gemfile

Author: bellapequette

Gemfile

@@ -1,14 +1,14 @@
 source 'https://rubygems.org'
 
-gem 'jekyll', '> 3.9.2'
-gem 'kramdown', '> 2.3.2'
+gem 'jekyll', '~> 3.9.2'
+gem 'kramdown', '~> 2.3.2'
 gem 'kramdown-parser-gfm', '~> 1.1.0'
 
 # needed for building in GitHub Actions
 gem 'webrick'
 gem 'rake'
 
 group :jekyll_plugins do
-  gem 'jekyll-scholar', '> 5.16.0'
-  #gem 'github-pages', '~> 227'
+  gem 'jekyll-scholar', '~> 5.16.0'
+  gem 'github-pages', '~> 227'
 end