Jekyll Kramdown code in ordered list - number reset

For those with this issue, adding extra info in front of the next number helped me.

6. Install the Ruby Google API client with `gem install google-api-client`, or if you prefer in a Gemfile:
    {% highlight ruby lineanchors %}
    source 'https://rubygems.org'
    gem 'google-api-client', '~> 0.9.1'
    {% endhighlight %}
(If you've never used [Bundler](http://bundler.io) before, you should start!)

{:start="7"}
7. Let's get a quick