Added/updated snippets for docs (#2318)

docs/doc_examples/983fbb78e57e8fe98db38cf2d217e943.asciidoc

@@ -0,0 +1,56 @@
+// 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: "test",
+  mappings: {
+    properties: {
+      comments: {
+        type: "nested",
+      },
+    },
+  },
+});
+console.log(response);
+
+const response1 = await client.index({
+  index: "test",
+  id: 1,
+  refresh: "true",
+  document: {
+    title: "Test title",
+    comments: [
+      {
+        author: "kimchy",
+        text: "comment text",
+      },
+      {
+        author: "nik9000",
+        text: "words words words",
+      },
+    ],
+  },
+});
+console.log(response1);
+
+const response2 = await client.search({
+  index: "test",
+  query: {
+    nested: {
+      path: "comments",
+      query: {
+        match: {
+          "comments.text": "words",
+        },
+      },
+      inner_hits: {
+        _source: false,
+        docvalue_fields: ["comments.text.keyword"],
+      },
+    },
+  },
+});
+console.log(response2);
+----