Add rubygems.org as allowed_push_host

poke-api-v2.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |spec|
   # Prevent pushing this gem to RubyGems.org. To allow pushes either set the 'allowed_push_host'
   # to allow pushing to a single host or delete this section to allow pushing to any host.
   if spec.respond_to?(:metadata)
-    spec.metadata['allowed_push_host'] = "TODO: Set to 'http://mygemserver.com'"
+    spec.metadata['allowed_push_host'] = "https://rubygems.org/"
   else
     raise 'RubyGems 2.0 or newer is required to protect against public gem pushes.'
   end