arx.gemspec in arx-0.1.0 vs arx.gemspec in arx-0.2.0

@@ -4,21 +4,32 @@
 
 Gem::Specification.new do |spec|
   spec.name          = 'arx'
   spec.version       = Arx::VERSION
   spec.authors       = ['Edwin Onuonga']
-  spec.email         = ['[e-mail]']
+  spec.email         = ['[e-mail]']
+  spec.homepage      = 'https://github.com/eonu/arx'
 
   spec.summary       = %q{A Ruby interface for querying academic papers on the arXiv search API.}
   spec.license       = 'MIT'
   spec.require_paths = ['lib']
   spec.files         = Dir.glob('lib/**/*', File::FNM_DOTMATCH) + %w[
     Gemfile LICENSE CHANGELOG.md README.md Rakefile arx.gemspec
   ]
 
+  spec.required_ruby_version = '~> 2.5'
+
   spec.add_runtime_dependency 'nokogiri', '~> 1.10'
   spec.add_runtime_dependency 'nokogiri-happymapper', '~> 0.8'
 
   spec.add_development_dependency 'bundler', '~> 2.0'
   spec.add_development_dependency 'rake', '~> 12.3'
   spec.add_development_dependency 'rspec', '~> 3.7'
+
+  spec.metadata = {
+    'source_code_uri' => spec.homepage,
+    'homepage_uri' => spec.homepage,
+    'documentation_uri' => 'https://www.rubydoc.info/gems/arx/toplevel',
+    'bug_tracker_uri' => "#{spec.homepage}/issues",
+    'changelog_uri' => "#{spec.homepage}/blob/master/CHANGELOG.md"
+  }
 end
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