Merge branch 'main' into patch-1

content/get-started/writing-on-github/working-with-advanced-formatting/creating-and-highlighting-code-blocks.md

@@ -66,6 +66,9 @@ This will display the code block with syntax highlighting:
 
 ![Screenshot of three lines of Ruby code as displayed on {% data variables.product.prodname_dotcom %}. Elements of the code display in purple, blue, and red type for scannability.](/assets/images/help/writing/code-block-syntax-highlighting-rendered.png)
 
+> [!TIP]
+> When you create a fenced code block that you also want to have syntax highlighting on a GitHub Pages site, use lower-case language identifiers. For more information, see [AUTOTITLE](/pages/setting-up-a-github-pages-site-with-jekyll/about-github-pages-and-jekyll#syntax-highlighting).
+
 We use [Linguist](https://github.com/github-linguist/linguist) to perform language detection and to select [third-party grammars](https://github.com/github-linguist/linguist/blob/main/vendor/README.md) for syntax highlighting. You can find out which keywords are valid in [the languages YAML file](https://github.com/github-linguist/linguist/blob/main/lib/linguist/languages.yml).
 
 ## Creating diagrams

content/organizations/managing-programmatic-access-to-your-organization/viewing-api-insights-in-your-organization.md

@@ -12,8 +12,6 @@ topics:
   - REST
 ---
 
-> [!NOTE] This feature is currently in {% data variables.release-phases.public_preview %} and is subject to change. We welcome your feedback in [this {% data variables.product.prodname_github_community %} discussion](https://github.co/api-insights-discussion).
-
 ## About API insights
 
 As a {% data variables.product.prodname_ghe_cloud %} organization owner, you and your designated users can view REST API activity for your entire organization or specific apps and users. This helps you understand the sources of your REST API activity and manage against your primary rate limits, giving you visibility into the timeframe, apps, and API endpoints involved. To learn more about primary rate limits, see [AUTOTITLE](/rest/using-the-rest-api/rate-limits-for-the-rest-api#about-primary-rate-limits).

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

@@ -110,6 +110,9 @@ To make your site easier to read, code snippets are highlighted on {% data varia
 
 By default, code blocks on your site will be highlighted by Jekyll. Jekyll uses the [Rouge](https://github.com/rouge-ruby/rouge) highlighter (which is compatible with [Pygments](https://pygments.org/)). If you specify Pygments in your `_config.yml` file, Rouge will be used as the fallback instead. Jekyll cannot use any other syntax highlighter, and you'll get a page build warning if you specify another syntax highlighter in your `_config.yml` file. For more information, see [AUTOTITLE](/pages/setting-up-a-github-pages-site-with-jekyll/about-jekyll-build-errors-for-github-pages-sites).
 
+> [!NOTE]
+> Rouge only recognizes lower-case language identifiers for fenced code blocks. For a list of supported languages, see [Languages](https://rouge-ruby.github.io/docs/file.Languages.html).
+
 If you want to use another highlighter, such as [highlight.js](https://github.com/highlightjs/highlight.js), you must disable Jekyll's syntax highlighting by updating your project's `_config.yml` file.
 
 ```yaml