[Backport 8.15] Added/updated snippets for docs (#2319)

(cherry picked from commit f737290d10)

Co-authored-by: Josh Mock <joshua.mock@elastic.co>

docs/doc_examples/d8fa7ca2ec8dbfa034603ea566e33f5b.asciidoc

@@ -0,0 +1,45 @@
+// 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({
+  index: "sales",
+  size: 0,
+  filter_path: "aggregations",
+  aggs: {
+    the_filter: {
+      filters: {
+        keyed: false,
+        filters: {
+          "t-shirt": {
+            term: {
+              type: "t-shirt",
+            },
+          },
+          hat: {
+            term: {
+              type: "hat",
+            },
+          },
+        },
+      },
+      aggs: {
+        avg_price: {
+          avg: {
+            field: "price",
+          },
+        },
+        sort_by_avg_price: {
+          bucket_sort: {
+            sort: {
+              avg_price: "asc",
+            },
+          },
+        },
+      },
+    },
+  },
+});
+console.log(response);
+----