jekyll-seo-tag/docs/installation.md

Installing Jekyll SEO Tag

1. Add the following to your site's Gemfile:

gem 'jekyll-seo-tag'

2. Add the following to your site's _config.yml:

plugins:
  - jekyll-seo-tag

If you are using a Jekyll version less than 3.5.0, use the gems key instead of plugins.

3. Add the following right before </head> in your site's template(s):

{% seo %}