💅 Fix markdownlint errors

Author: zzak

guides/source/asset_pipeline.md

@@ -321,8 +321,7 @@ When doing this, ensure you are not using the `require_tree` directive in your `
 Pipeline assets can be placed inside an application in one of three locations:
 `app/assets`, `lib/assets` or `vendor/assets`.
 
-* `app/assets` is for assets that are owned by the application, such as custom
-images or stylesheets.
+* `app/assets` is for assets that are owned by the application, such as custom images or stylesheets.
 
 * `app/javascript` is for your JavaScript code
 
@@ -1065,8 +1064,6 @@ Unlike other libraries in this list `webpacker`/`shakapacker` is completely inde
 
 NOTE: Read the [Comparison with Webpacker](https://github.com/rails/jsbundling-rails/blob/main/docs/comparison_with_webpacker.md) document to understand the differences between `jsbundling-rails` and `webpacker`/`shakapacker`.
 
-***
-
 ### [cssbundling-rails](https://github.com/rails/cssbundling-rails)
 
 Allows bundling and processing of your CSS using [Tailwind CSS](https://tailwindcss.com/), [Bootstrap](https://getbootstrap.com/), [Bulma](https://bulma.io/), [PostCSS](https://postcss.org/), or [Dart Sass](https://sass-lang.com/), then delivers the CSS via the asset pipeline.