Use YARD

.yardopts

@@ -0,0 +1,5 @@
+--protected
+--private
+--markup markdown
+-
+LICENSE

Rakefile

@@ -9,3 +9,6 @@ task lint: [:rubocop]
 
 require 'rubocop/rake_task'
 RuboCop::RakeTask.new
+
+require 'yard'
+YARD::Rake::YardocTask.new

lita-tox.gemspec

@@ -27,4 +27,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rubocop', '~> 0.31'
   spec.add_development_dependency 'rspec', '~> 3.3'
   spec.add_development_dependency 'simplecov', '~> 0.10'
+  spec.add_development_dependency 'yard', '~> 0.8'
+  spec.add_development_dependency 'redcarpet', '~> 3.3'
 end