Temporarily downgrade Ruby to 2.7.1

yasulab · yasulab · commit efa20f24390c · 2021-11-19T16:27:41.000+09:00
diff --git a/.ruby-version b/.ruby-version
@@ -1 +1 @@
-3.0.2
+2.7.1
diff --git a/Gemfile b/Gemfile
@@ -2,7 +2,6 @@ source "https://rubygems.org"
 
 gem "jekyll"
 gem "minima"   # default theme for new Jekyll sites
-gem "liquid-c" # Speedup with C implementation
 gem 'rake'     # Enable Rakefile to run tasks
 gem "webrick"  #, "~> 1.7"
 
