docs: switch to fenced codeblocks (#31806)

site/content/docs/5.0/getting-started/contents.md

@@ -12,7 +12,7 @@ Once downloaded, unzip the compressed folder and you'll see something like this:
 
 <!-- NOTE: This info is intentionally duplicated in the README. Copy any changes made here over to the README too, but be sure to keep in mind to add the `dist` folder. -->
 
-{{< highlight text >}}
+```text
 bootstrap/
 ├── css/
 │   ├── bootstrap-grid.css
@@ -44,7 +44,7 @@ bootstrap/
     ├── bootstrap.js.map
     ├── bootstrap.min.js
     └── bootstrap.min.js.map
-{{< /highlight >}}
+```
 
 This is the most basic form of Bootstrap: precompiled files for quick drop-in usage in nearly any web project. We provide compiled CSS and JS (`bootstrap.*`), as well as compiled and minified CSS and JS (`bootstrap.min.*`). [source maps](https://developers.google.com/web/tools/chrome-devtools/javascript/source-maps) (`bootstrap.*.map`) are available for use with certain browsers' developer tools. Bundled JS files (`bootstrap.bundle.js` and minified `bootstrap.bundle.min.js`) include [Popper](https://popper.js.org/).
 
@@ -139,7 +139,7 @@ Similarly, we have options for including some or all of our compiled JavaScript.
 
 The Bootstrap source code download includes the precompiled CSS and JavaScript assets, along with source Sass, JavaScript, and documentation. More specifically, it includes the following and more:
 
-{{< highlight text >}}
+```text
 bootstrap/
 ├── dist/
 │   ├── css/
@@ -151,6 +151,6 @@ bootstrap/
 │              └── examples/
 ├── js/
 └── scss/
-{{< /highlight >}}
+```
 
 The `scss/` and `js/` are the source code for our CSS and JavaScript. The `dist/` folder includes everything listed in the precompiled download section above. The `site/docs/` folder includes the source code for our documentation, and `examples/` of Bootstrap usage. Beyond that, any other included file provides support for packages, license information, and development.