style: format capturing-feed-configs guide

Author: gildesmarais

src/content/docs/ruby-gem/guides/capturing-feed-configs.mdx

@@ -8,7 +8,8 @@ import { Aside, Code } from "@astrojs/starlight/components";
 `html2rss capture` analyzes a page through the auto-source pipeline and prints a reusable feed config with derived CSS selectors. Use it when you want a first draft faster than hand-writing selectors from scratch.
 
 <Aside type="tip" title="Treat capture as a draft">
-  Selector quality depends on page structure. Complex layouts often need a manual `items_selector` hint or small edits before you ship the config.
+  Selector quality depends on page structure. Complex layouts often need a manual `items_selector` hint or
+  small edits before you ship the config.
 </Aside>
 
 ## When to Capture