Gemfile in extenso_pt-0.5.2 vs Gemfile in extenso_pt-0.5.3

@@ -1,2 +1,4 @@
-source "https://rubygems.org"
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
 
 # Specify your gem's dependencies in extenso_pt.gemspec