docs: fix a broken link

Author: designorant

docs/demos/ShowMoreText.mdx

@@ -14,7 +14,7 @@ import MarkupContainer from "./components/MarkupContainer"
 
 Demonstrates rehydrating a simple string prop.
 
-A more advanced version, which rehydrates complex DOM nodes, can be seen in the [`ShowMore` demo](/demos/ShowMore).
+A more advanced version, which rehydrates complex DOM nodes, can be seen in the [`ShowMore` demo](/demo/ShowMore).
 
 <Playground>
   <MarkupContainer rehydrators={{ShowMoreText: rehydrator}} options={{}}>