Adjust documentation following depreciation of pages.github.com (#57100)

Author: yoannchaudet

content/pages/setting-up-a-github-pages-site-with-jekyll/about-github-pages-and-jekyll.md

@@ -76,9 +76,9 @@ You can add `site.github` to a post or page to add any repository references met
 {% data reusables.pages.add-jekyll-theme %} For more information, see [Themes](https://jekyllrb.com/docs/themes/) in the Jekyll documentation.
 
 {% ifversion fpt or ghec %}
-You can add a supported theme to your site on {% data variables.product.prodname_dotcom %}. For more information, see [Supported themes](https://pages.github.com/themes/) on the {% data variables.product.prodname_pages %} site and [Adding a theme to your {% data variables.product.prodname_pages %} site using Jekyll](/pages/setting-up-a-github-pages-site-with-jekyll/adding-a-theme-to-your-github-pages-site-using-jekyll).
+You can add a supported theme to your site on {% data variables.product.prodname_dotcom %}. For more information, see [Supported themes](/pages/setting-up-a-github-pages-site-with-jekyll/testing-your-github-pages-site-locally-with-jekyll#supported-themes) on the {% data variables.product.prodname_pages %} site and [Adding a theme to your {% data variables.product.prodname_pages %} site using Jekyll](/pages/setting-up-a-github-pages-site-with-jekyll/adding-a-theme-to-your-github-pages-site-using-jekyll).
 
-To use any other open source Jekyll theme hosted on {% data variables.product.prodname_dotcom %}, you can add the theme manually.{% else %} You can add a theme to your site manually.{% endif %} For more information, see{% ifversion fpt or ghec %} [themes hosted on {% data variables.product.prodname_dotcom %}](https://github.com/topics/jekyll-theme) and{% else %} [Supported themes](https://pages.github.com/themes/) on the {% data variables.product.prodname_pages %} site and{% endif %} [AUTOTITLE](/pages/setting-up-a-github-pages-site-with-jekyll/adding-a-theme-to-your-github-pages-site-using-jekyll).
+To use any other open source Jekyll theme hosted on {% data variables.product.prodname_dotcom %}, you can add the theme manually.{% else %} You can add a theme to your site manually.{% endif %} For more information, see{% ifversion fpt or ghec %} [themes hosted on {% data variables.product.prodname_dotcom %}](https://github.com/topics/jekyll-theme) and{% else %} [Supported themes](/pages/setting-up-a-github-pages-site-with-jekyll/testing-your-github-pages-site-locally-with-jekyll#supported-themes) on the {% data variables.product.prodname_pages %} site and{% endif %} [AUTOTITLE](/pages/setting-up-a-github-pages-site-with-jekyll/adding-a-theme-to-your-github-pages-site-using-jekyll).
 
 You can override any of your theme's defaults by editing the theme's files. For more information, see your theme's documentation and [Overriding your theme's defaults](https://jekyllrb.com/docs/themes/#overriding-theme-defaults) in the Jekyll documentation.
 
@@ -99,10 +99,10 @@ You can download or create Jekyll plugins to extend the functionality of Jekyll
 
 You can enable additional plugins by adding the plugin's gem to the `plugins` setting in your `_config.yml` file. For more information, see [Configuration](https://jekyllrb.com/docs/configuration/) in the Jekyll documentation.
 
-For a list of supported plugins, see [Dependency versions](https://pages.github.com/versions/) on the {% data variables.product.prodname_pages %} site. For usage information for a specific plugin, see the plugin's documentation.
+For a list of supported plugins, see [Dependency versions](https://pages.github.com/versions.json) on the {% data variables.product.prodname_pages %} site. For usage information for a specific plugin, see the plugin's documentation.
 
 > [!TIP]
-> You can make sure you're using the latest version of all plugins by keeping the {% data variables.product.prodname_pages %} gem updated. For more information, see [AUTOTITLE](/pages/setting-up-a-github-pages-site-with-jekyll/testing-your-github-pages-site-locally-with-jekyll#updating-the-github-pages-gem) and [Dependency versions](https://pages.github.com/versions/) on the {% data variables.product.prodname_pages %} site.
+> You can make sure you're using the latest version of all plugins by keeping the {% data variables.product.prodname_pages %} gem updated. For more information, see [AUTOTITLE](/pages/setting-up-a-github-pages-site-with-jekyll/testing-your-github-pages-site-locally-with-jekyll#updating-the-github-pages-gem) and [Dependency versions](https://pages.github.com/versions.json) on the {% data variables.product.prodname_pages %} site.
 
 {% data variables.product.prodname_pages %} cannot build sites using unsupported plugins. If you want to use unsupported plugins, generate your site locally and then push your site's static files to {% data variables.product.github %}.
 

content/pages/setting-up-a-github-pages-site-with-jekyll/adding-a-theme-to-your-github-pages-site-using-jekyll.md

@@ -23,14 +23,34 @@ People with write permissions for a repository can add a theme to a {% data vari
 
 {% data reusables.pages.test-locally %}
 
+## Supported themes
+
+Out of the box, the following themes are supported:
+
+* [Architect](https://github.com/pages-themes/architect)
+* [Cayman](https://github.com/pages-themes/cayman)
+* [Dinky](https://github.com/pages-themes/dinky)
+* [Hacker](https://github.com/pages-themes/hacker)
+* [Leap day](https://github.com/pages-themes/leap-day)
+* [Merlot](https://github.com/pages-themes/merlot)
+* [Midnight](https://github.com/pages-themes/midnight)
+* [Minima](https://github.com/jekyll/minima)
+* [Minimal](https://github.com/pages-themes/minimal)
+* [Modernist](https://github.com/pages-themes/modernist)
+* [Slate](https://github.com/pages-themes/slate)
+* [Tactile](https://github.com/pages-themes/tactile)
+* [Time machine](https://github.com/pages-themes/time-machine)
+
+The [`jekyll-remote-theme`](https://github.com/benbalter/jekyll-remote-theme) Jekyll plugin is also available and lets you load other themes.
+
 ## Adding a theme
 
 {% data reusables.pages.navigate-site-repo %}
 {% data reusables.pages.navigate-publishing-source %}
 1. Navigate to `_config.yml`.
 {% data reusables.repositories.edit-file %}
 1. Add a new line to the file for the theme name.
-   * To use a supported theme, type `theme: THEME-NAME`, replacing THEME-NAME with the name of the theme as shown in the `_config.yml` of the theme's repository (most themes follow a `jekyll-theme-NAME` naming convention). For a list of supported themes, see [Supported themes](https://pages.github.com/themes/) on the {% data variables.product.prodname_pages %} site. For example, to select the Minimal theme, type `theme: jekyll-theme-minimal`.
+   * To use a supported theme, type `theme: THEME-NAME`, replacing THEME-NAME with the name of the theme as shown in the `_config.yml` of the theme's repository (most themes follow a `jekyll-theme-NAME` naming convention). For a list of supported themes, see [Supported themes](/pages/setting-up-a-github-pages-site-with-jekyll/testing-your-github-pages-site-locally-with-jekyll#supported-themes) on the {% data variables.product.prodname_pages %} site. For example, to select the Minimal theme, type `theme: jekyll-theme-minimal`.
    * To use any other Jekyll theme hosted on {% data variables.product.prodname_dotcom %}, type `remote_theme: THEME-NAME`, replacing THEME-NAME with the name of the theme as shown in the README of the theme's repository.
 {% data reusables.files.write_commit_message %}
 {% data reusables.files.choose-commit-email %}

content/pages/setting-up-a-github-pages-site-with-jekyll/creating-a-github-pages-site-with-jekyll.md

@@ -99,7 +99,7 @@ Before you can use Jekyll to create a {% data variables.product.prodname_pages %
    gem "github-pages", "~> GITHUB-PAGES-VERSION", group: :jekyll_plugins
    ```
 
-   Replace GITHUB-PAGES-VERSION with the latest supported version of the `github-pages` gem. You can find this version here: [Dependency versions](https://pages.github.com/versions/).
+   Replace GITHUB-PAGES-VERSION with the latest supported version of the `github-pages` gem. You can find this version here: [Dependency versions](https://pages.github.com/versions.json).
 
    The correct version Jekyll will be installed as a dependency of the `github-pages` gem.
 1. Save and close the Gemfile.

data/reusables/pages/best-with-supported-themes.md

@@ -1,3 +1,3 @@
 {% ifversion fpt or ghec %}
-These instructions work best with themes that are officially supported by {% data variables.product.prodname_pages %}. For a complete list of supported themes, see [Supported themes](https://pages.github.com/themes/) on the {% data variables.product.prodname_pages %} site.
+These instructions work best with themes that are officially supported by {% data variables.product.prodname_pages %}. For a complete list of supported themes, see [Supported themes](/pages/setting-up-a-github-pages-site-with-jekyll/testing-your-github-pages-site-locally-with-jekyll#supported-themes) on the {% data variables.product.prodname_pages %} site.
 {% endif %}