add puppet-lint-param-docs

.sync.yml

@@ -0,0 +1,5 @@
+---
+Gemfile:
+  optional:
+    ':test':
+      - gem: puppet-lint-param-docs

Gemfile

@@ -8,6 +8,7 @@ group :test do
   gem 'coveralls',                  :require => false
   gem 'simplecov-console',          :require => false
   gem 'puppet_metadata', '~> 1.0',  :require => false
+  gem 'puppet-lint-param-docs',     :require => false
 end
 
 group :development do