Added/updated snippets for docs (#2318)

docs/doc_examples/6eead05dd3b04722ef0ea5644c2e047d.asciidoc

@@ -0,0 +1,49 @@
+// 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,
+  aggs: {
+    sales_per_month: {
+      date_histogram: {
+        field: "date",
+        calendar_interval: "month",
+      },
+      aggs: {
+        total_sales: {
+          sum: {
+            field: "price",
+          },
+        },
+        "t-shirts": {
+          filter: {
+            term: {
+              type: "t-shirt",
+            },
+          },
+          aggs: {
+            sales: {
+              sum: {
+                field: "price",
+              },
+            },
+          },
+        },
+        "t-shirt-percentage": {
+          bucket_script: {
+            buckets_path: {
+              tShirtSales: "t-shirts>sales",
+              totalSales: "total_sales",
+            },
+            script: "params.tShirtSales / params.totalSales * 100",
+          },
+        },
+      },
+    },
+  },
+});
+console.log(response);
+----