Added/updated snippets for docs (#2318)

docs/doc_examples/99c1cfe60f3ccf5bf3abd24c31ed9034.asciidoc

@@ -0,0 +1,14 @@
+// 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.ccr.putAutoFollowPattern({
+  name: "<auto_follow_pattern_name>",
+  remote_cluster: "<remote_cluster>",
+  leader_index_patterns: ["<leader_index_pattern>"],
+  leader_index_exclusion_patterns: ["<leader_index_exclusion_pattern>"],
+  follow_index_pattern: "<follow_index_pattern>",
+});
+console.log(response);
+----