Update nodeinfo.rs

crates/routes/src/nodeinfo.rs

@@ -45,7 +45,7 @@ async fn node_info(context: web::Data<LemmyContext>) -> Result<HttpResponse, Err
     .ok_or(ErrorBadRequest(LemmyError::from(anyhow!("not_found"))))?;
 
   let protocols = if site_view.local_site.federation_enabled {
-    None
+    Some(vec!["activitypub".to_string()])
   } else {
     None
   };