Clarify label of link to Jekyll quickstart (#549)

Co-authored-by: Matt Wang <matt@matthewwang.me>

index.md

@@ -20,7 +20,7 @@ Just the Docs gives your documentation a jumpstart with a responsive Jekyll them
 
 ### Dependencies
 
-Just the Docs is built for [Jekyll](https://jekyllrb.com), a static site generator. View the [quick start guide](https://jekyllrb.com/docs/) for more information. Just the Docs requires no special plugins and can run on GitHub Pages' standard Jekyll compiler. The [Jekyll SEO Tag plugin](https://github.com/jekyll/jekyll-seo-tag) is included by default (no need to run any special installation) to inject SEO and open graph metadata on docs pages. For information on how to configure SEO and open graph metadata visit the [Jekyll SEO Tag usage guide](https://jekyll.github.io/jekyll-seo-tag/usage/).
+Just the Docs is built for [Jekyll](https://jekyllrb.com), a static site generator. View the [Jekyll quick start guide](https://jekyllrb.com/docs/) for more information. Just the Docs requires no special plugins and can run on GitHub Pages' standard Jekyll compiler. The [Jekyll SEO Tag plugin](https://github.com/jekyll/jekyll-seo-tag) is included by default (no need to run any special installation) to inject SEO and open graph metadata on docs pages. For information on how to configure SEO and open graph metadata visit the [Jekyll SEO Tag usage guide](https://jekyll.github.io/jekyll-seo-tag/usage/).
 
 ### Quick start: Use as a GitHub Pages remote theme