Update install.mdx

Author: rodydavis

website/src/content/docs/reference/install.mdx

@@ -72,3 +72,11 @@ or from the command line:
     <Code code="import 'package:signals/signals_flutter.dart';" lang="dart" />
   </TabItem>
 </Tabs>
+
+## AI Editor Integration
+
+If you want to consume the docs in a LLM that accepts markdown, you can use this link:
+
+```
+https://dartsignals.dev/llms.txt
+```