Refine documentation build information

doc/development/documentation/index.md

@@ -290,9 +290,7 @@ For example, [GitLab.com's `/help`](https://gitlab.com/help).
 
 ## Docs site architecture
 
-See the [Docs site architecture](site_architecture/index.md) page to learn
-how we build and deploy the site at <https://docs.gitlab.com> and
-to review all the assets and libraries in use.
+For information on how we build and deploy <https://docs.gitlab.com>, see [Docs site architecture](site_architecture/index.md).
 
 ### Global navigation
 

doc/development/documentation/site_architecture/deployment_process.md

@@ -82,7 +82,7 @@ for the stable branch of the image to rebuild. You might do this:
 
 ## Latest documentation
 
-A Docker image (tagged `latest`) is built that contains:
+We build a Docker image (tagged `latest`) that contains:
 
 - The latest online version of the documentation.
 - The documentation from the stable branches of upstream projects.

doc/development/documentation/site_architecture/index.md

@@ -60,13 +60,12 @@ To provide an optimized site structure, design, and a search-engine friendly
 website, along with a discoverable documentation, we use a few assets for
 the GitLab Documentation website.
 
-### Libraries
+### External libraries
 
-- [Bootstrap 4.3.1 components](https://getbootstrap.com/docs/4.3/components/)
-- [Bootstrap 4.3.1 JS](https://getbootstrap.com/docs/4.3/getting-started/javascript/)
-- [jQuery](https://jquery.com/) 3.3.1
-- [Clipboard JS](https://clipboardjs.com/)
-- [Font Awesome 4.7.0](https://fontawesome.com/v4.7.0/icons/)
+GitLab Docs is built with a combination of external:
+
+- [JavaScript libraries](https://gitlab.com/gitlab-org/gitlab-docs/-/blob/main/package.json).
+- [Ruby libraries](https://gitlab.com/gitlab-org/gitlab-docs/-/blob/main/Gemfile).
 
 ### SEO