Added/updated snippets for docs (#2318)

docs/doc_examples/30f3e3b9df46afd12e68bc71f18483b4.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.indices.create({
+  index: "my-index-000001",
+});
+console.log(response);
+
+const response1 = await client.indices.create({
+  index: "my-index-000002",
+});
+console.log(response1);
+
+const response2 = await client.indices.putMapping({
+  index: "my-index-000001,my-index-000002",
+  properties: {
+    user: {
+      properties: {
+        name: {
+          type: "keyword",
+        },
+      },
+    },
+  },
+});
+console.log(response2);
+----