Update docs examples (#1024)

* Updated generate-docs-examples script

* Updated docs examples

docs/doc_examples/028f6d6ac2594e20b78b8a8f8cbad49d.asciidoc

@@ -0,0 +1,43 @@
+// This file is autogenerated, DO NOT EDIT
+// Use `node scripts/generate-docs-examples.js` to generate the docs examples
+
+[source, js]
+----
+const response = await client.search({
+  body: {
+    aggs: {
+      countries: {
+        terms: {
+          field: 'artist.country',
+          order: [
+            {
+              'rock>playback_stats.avg': 'desc'
+            },
+            {
+              _count: 'desc'
+            }
+          ]
+        },
+        aggs: {
+          rock: {
+            filter: {
+              term: {
+                genre: 'rock'
+              }
+            },
+            aggs: {
+              playback_stats: {
+                stats: {
+                  field: 'play_count'
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+})
+console.log(response)
+----
+