docs: fix querying example route is not defined

In the current example, route is being destructured to only use the path property, so I've replaced `route.path` with just `path` to not get a `route is not defined` error

docs/content/3.guide/2.displaying/2.querying.md

@@ -129,7 +129,7 @@ This example uses the `where()`{lang="ts"} and `only()`{lang="ts"} methods to fe
 <script setup>
 const { path } = useRoute()
 
-const { data } = await useAsyncData(`content-${route.path}`, () => {
+const { data } = await useAsyncData(`content-${path}`, () => {
   return queryContent().where({ _path: path }).only(['title']).findOne()
 })
 </script>