fix link to snippets docs (#1883)

Author: davidkonigsberg

fern/products/docs/pages/changelog/2025-11-08.mdx

@@ -18,7 +18,7 @@ This renders as:
 
 <Markdown src="/snippets/watering-schedule.mdx" plant="peace lily" interval="3" />
 
-Learn more about [reusable Markdown snippets](/learn/docs/writing-content/reusable-snippet).
+Learn more about [reusable Markdown snippets](/learn/docs/writing-content/reusable-snippets).
 
 ## New Copy component for inline copyable text