Added/updated snippets for docs (#2318)

docs/doc_examples/ec69543e39c1f6afb5aff6fb9adc400d.asciidoc

@@ -0,0 +1,29 @@
+// 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.bulk({
+  index: "index1",
+  refresh: "true",
+  operations: [
+    {
+      index: {
+        _id: "doc1",
+      },
+    },
+    {
+      comment: "run with scissors",
+    },
+    {
+      index: {
+        _id: "doc2",
+      },
+    },
+    {
+      comment: "running with scissors",
+    },
+  ],
+});
+console.log(response);
+----