Added/updated snippets for docs (#2318)

docs/doc_examples/9e962baf1fb407c21d6c47dcd37cec29.asciidoc

@@ -0,0 +1,21 @@
+// 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.renderSearchTemplate({
+  source: {
+    query: {
+      match: {
+        message: "{{query_string}}",
+      },
+    },
+    from: "{{from}}{{^from}}0{{/from}}",
+    size: "{{size}}{{^size}}10{{/size}}",
+  },
+  params: {
+    query_string: "hello world",
+  },
+});
+console.log(response);
+----