[Backport 8.15] Added/updated snippets for docs (#2319)

(cherry picked from commit f737290d10)

Co-authored-by: Josh Mock <joshua.mock@elastic.co>

docs/doc_examples/cd38c601ab293a6ec0e2df71d0c96b58.asciidoc

@@ -0,0 +1,32 @@
+// 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.cluster.putComponentTemplate({
+  name: "template_with_2_shards",
+  template: {
+    settings: {
+      "index.number_of_shards": 2,
+    },
+  },
+});
+console.log(response);
+
+const response1 = await client.cluster.putComponentTemplate({
+  name: "template_with_3_shards",
+  template: {
+    settings: {
+      "index.number_of_shards": 3,
+    },
+  },
+});
+console.log(response1);
+
+const response2 = await client.indices.putIndexTemplate({
+  name: "template_1",
+  index_patterns: ["t*"],
+  composed_of: ["template_with_2_shards", "template_with_3_shards"],
+});
+console.log(response2);
+----