README.md in compare_linker-1.3.8 vs README.md in compare_linker-1.4.0

@@ -43,9 +43,17 @@
 compare_linker.formatter = CompareLinker::Formatter::Markdown.new
 comment = compare_linker.make_compare_links.to_a.join("\n")
 compare_linker.add_comment('masutaka/compare_linker', '17', comment)
 ```
 
+### GitHub Enterprise
+In addition to OCTOKIT_ACCESS_TOKEN, set the following environment variables.
+
+```ruby
+ENV['ENTERPRISE_OCTOKIT_ACCESS_TOKEN'] = 'xxx'
+ENV['ENTERPRISE_OCTOKIT_API_ENDPOINT'] = 'https://www.example.com/api/v3'
+```
+
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
 
 To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).