(docs) Move redirects info into a snippet, make clarifying updates (#804)

Author: devalog

fern/products/docs/pages/customization/what-is-docs-yml.mdx

@@ -211,25 +211,7 @@ logo:
 
 ## Redirects configuration
 
-```yaml docs.yml
-redirects:
-  - source: "/old-path"
-    destination: "/new-path"
-  - source: "/old-folder/*"
-    destination: "/new-folder/*"
-```
-
-<ParamField path="source" type="string" required={true}>
-  The path that you want to redirect from.
-</ParamField>
-
-<ParamField path="destination" type="string" required={true}>
-  The path that you want to redirect to.
-</ParamField>
-
-<ParamField path="permanent" type="boolean" required={false}>
-  Toggle between **permanent** and **temporary** redirect (default `false`). When true, the status code is 308. When false the status code is 307.
-</ParamField>
+<Markdown src="/snippets/redirects.mdx" />
 
 ## NavBar links configuration
 

fern/products/docs/pages/seo/redirects.mdx

@@ -5,46 +5,7 @@ subtitle: Set up the navigation for your documentation site built with Fern Docs
 
 ## Redirects
 
-The `redirects` object allows you to redirect traffic from one path to another. You can redirect exact paths or use dynamic patterns with [`regex`](https://www.npmjs.com/package/path-to-regexp) parameters like `:slug`.
-
-
-  <CodeBlock title="docs.yml">
-    ```yml
-    redirects:
-      # Exact path redirects
-      - source: "/old-path"
-        destination: "/new-path"
-      - source: "/old-folder/path"
-        destination: "/new-folder/path"
-        
-      # Regex-based redirects  
-      - source: "/old-folder/:slug" # <- /old-folder/foo, /old-folder/bar, etc.
-        destination: "/new-folder/:slug"
-      - source: "/old-folder/:slug*" # <- /incorrect, /incorrect/foo/bar/baz, etc.
-        destination: "/new-folder/:slug*"
-    ```
-  </CodeBlock>
-
-  <Info>
-    Parameters suffixed with an asterisk (`*`) denote a match with zero or more.
-  </Info>
-
-### Setting permanent redirects
-
-By default, the redirects implement temporary (302) redirects. If you would like to implement permanent (301) redirects, you can set `permanent: true`.
-
-<CodeBlock title="docs.yml">
-  ```yml
-  redirects:
-    - source: "/old-subdomain"
-      destination: "/new-subdomain"
-      permanent: true
-  ```
-</CodeBlock>
-
-<Note title="Subpaths">
-  If your docs are hosted on a subpath (like `buildwithfern.com/learn`), be sure to include the subpath in the redirect.
-</Note>
+<Markdown src="/snippets/redirects.mdx" />
 
 ## Links
 

fern/snippets/redirects.mdx

@@ -0,0 +1,38 @@
+The `redirects` object allows you to redirect traffic from one path to another. You can redirect exact paths or use dynamic patterns with [`regex`](https://www.npmjs.com/package/path-to-regexp) parameters like `:slug`.
+
+If your docs are hosted on a subpath (like `buildwithfern.com/learn`), include the subpath in both the source and destination paths.
+
+
+  <CodeBlock title="docs.yml">
+    ```yml
+    redirects:
+      # Exact path redirects
+      - source: "/old-path"
+        destination: "/new-path"
+      - source: "/old-folder/path"
+        destination: "/new-folder/path"
+        permanent: true
+        
+      # Regex-based redirects  
+      - source: "/old-folder/:slug" # <- /old-folder/foo, /old-folder/bar, etc.
+        destination: "/new-folder/:slug"
+      - source: "/old-folder/:slug*" # <- /incorrect, /incorrect/foo/bar/baz, etc.
+        destination: "/new-folder/:slug*"
+    ```
+  </CodeBlock>
+
+<Info>
+    Parameters suffixed with an asterisk (`*`) match zero or more path segments, capturing everything that follows in the URL. Use this when redirecting entire folder structures while preserving nested paths.
+  </Info>
+
+<ParamField path="source" type="string" required={true}>
+  The path that you want to redirect from.
+</ParamField>
+
+<ParamField path="destination" type="string" required={true}>
+  The path that you want to redirect to.
+</ParamField>
+
+<ParamField path="permanent" type="boolean" required={false}>
+  Toggle between **permanent** and **temporary** redirect (default `false`). When true, the status code is 308. When false, the status code is 307.
+</ParamField>