* homepage links
* Link logo to What is Dash page.
* Plugin to generate sitemap.xml
* Link to sitemap plugin github repo.
* Footer links
Still need to create pages for:
* terms-of-use/
* contact/
* Get Dash and Participate links
* New link keys for language yml files.
* Missing Contact and Terms of Use pages (placeholders)
* (Update) Dependencies: Add bundler and Gemfile to handle ruby dependencies
* (Update) Dependencies: Move jekyll-multiple-languages-plugin into Gemfile instead of using a git submodule
* (Doc) README: Adjust note about jekyll-multiple-language-plugin
