Gemfile in MonkeyEngine-1.1.0 vs Gemfile in MonkeyEngine-2.0.0

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in monkeyengine.gemspec
-gemspec
\ No newline at end of file
+gemspec