Added/updated snippets for docs (#2318)

docs/doc_examples/8aa74aee3dcf4b34028e4c5e1c1ed27b.asciidoc

@@ -0,0 +1,37 @@
+// 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.indices.create({
+  index: "bug_reports",
+  mappings: {
+    properties: {
+      title: {
+        type: "text",
+      },
+      labels: {
+        type: "flattened",
+      },
+    },
+  },
+});
+console.log(response);
+
+const response1 = await client.index({
+  index: "bug_reports",
+  id: 1,
+  document: {
+    title: "Results are not sorted correctly.",
+    labels: {
+      priority: "urgent",
+      release: ["v1.2.5", "v1.3.0"],
+      timestamp: {
+        created: 1541458026,
+        closed: 1541457010,
+      },
+    },
+  },
+});
+console.log(response1);
+----