6.2. ... Returns a link tag that browsers and news readers can use to auto-detect an RSS or Atom feed. Ruby on Rails Guides Action View Overview - Ruby on Rails Guides

The "10" in your snippet likely indicates there are 10 subsections or primary chapters within that specific version of the documentation. Action View Overview - Ruby on Rails Guides

In older versions of the Rails guides (specifically versions 4.0 through 4.2), section 6.2 is titled . This section describes common Ruby helpers used to generate HTML for assets, such as: javascript_include_tag : Path for JavaScript files. stylesheet_link_tag : Link tags for CSS files. image_tag : HTML tags for images. video_tag and audio_tag : HTML5 media tags.

The string likely refers to section 6.2 of the Action View Overview guide within the Ruby on Rails documentation .