Add highlighted and comment props to files changelog entry (#1925)

Author: devalog

fern/products/docs/pages/changelog/2025-11-09.mdx

@@ -3,7 +3,7 @@
 The new `<Files>` component creates visual file tree structures with expandable folders and nested files. Use it to show project structures, directory layouts, or any hierarchical file organization in your documentation.
 
 <Files>
-  <Folder name="components" defaultOpen>
+  <Folder name="components" highlighted defaultOpen>
     <File name="accordion.mdx" />
     <File name="button.mdx" />
     <File name="card.mdx" />
@@ -12,6 +12,8 @@ The new `<Files>` component creates visual file tree structures with expandable
   <Folder name="assets">
     <File name="styles.css" />
   </Folder>
+  <File name="markdown.mdx" href="/learn/docs/writing-content/markdown" />
+  <File name="README.md" comment="Contribute to the docs"/>
   <File name="markdown.mdx" href="/learn/docs/writing-content/markdown-basics" />
   <File name="README.md" />
 </Files>
@@ -20,7 +22,7 @@ The component consists of three parts: `<Files>` as the container, `<Folder>` fo
 
 ```jsx Markdown maxLines=10
 <Files>
-  <Folder name="components" defaultOpen>
+  <Folder name="components" highlighted defaultOpen>
     <File name="accordion.mdx" />
     <File name="button.mdx" />
     <File name="card.mdx" />
@@ -29,6 +31,8 @@ The component consists of three parts: `<Files>` as the container, `<Folder>` fo
   <Folder name="assets">
     <File name="styles.css" />
   </Folder>
+  <File name="markdown.mdx" href="/learn/docs/writing-content/markdown" />
+  <File name="README.md" comment="Contribute to the docs"/>
   <File name="markdown.mdx" href="/learn/docs/writing-content/markdown-basics" />
   <File name="README.md" />
 </Files>