Universe 2021 (#22246)

https://github.com/github/docs-internal/pull/22217
https://github.com/github/docs-internal/pull/22130
https://github.com/github/docs-internal/pull/22195
https://github.com/github/docs-internal/pull/22327
https://github.com/github/docs-internal/pull/22204
https://github.com/github/docs-internal/pull/21676
https://github.com/github/docs-internal/pull/22341
https://github.com/github/docs-internal/pull/22329
https://github.com/github/docs-internal/pull/21970
https://github.com/github/docs-internal/pull/22334
https://github.com/github/docs-internal/pull/22365
https://github.com/github/docs-internal/pull/21904

content/github-cli/github-cli/about-github-cli.md

@@ -24,7 +24,7 @@ For more information about what you can do with {% data variables.product.prodna
 
 ## Installing {% data variables.product.prodname_cli %}
 
-View installation instructions {% data variables.product.prodname_cli %} for macOS, Windows, and Linux on the [{% data variables.product.prodname_cli %} page](https://cli.github.com).
+{% data reusables.cli.cli-installation %}
 
 ## Sharing feedback
 

content/github-cli/index.md

@@ -18,6 +18,7 @@ featuredLinks:
     - /github-cli/github-cli/creating-github-cli-extensions
     - /github-cli/github-cli/using-github-cli-extensions
     - /actions/guides/using-github-cli-in-workflows
+    - /codespaces/developing-in-codespaces/using-codespaces-with-github-cli
   popular:
     - /github/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request
     - /issues/tracking-your-work-with-issues/creating-an-issue