Gemfile in rbs-0.10.0 vs Gemfile in rbs-0.11.0

@@ -4,9 +4,10 @@
 gemspec
 
 # Development dependencies
 gem "rake"
 gem "minitest"
+gem "rspec"
 gem "racc"
 gem "rubocop"
 gem "rubocop-rubycw"
 gem "minitest-reporters"
 gem "json"