Merge pull request #518 from zipmark/dependabot/bundler/rspec-tw-3.13.0

Update rspec requirement from ~> 3.4.0 to ~> 3.13.0 [ci skip]

Author: bf4

rspec_api_documentation.gemspec

@@ -36,7 +36,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency "contracts", "~> 0.13.0"
   s.add_development_dependency "gherkin", "~> 3.2.0"
   s.add_development_dependency "multi_json", "~> 1.11.2"
-  s.add_development_dependency "rspec", "~> 3.4.0"
+  s.add_development_dependency "rspec", "~> 3.0"
 
   s.files        = Dir.glob("lib/**/*") + Dir.glob("templates/**/*")
   s.require_path = "lib"