Added/updated snippets for docs (#2318)

docs/doc_examples/07ba3eaa931f2cf110052e3544db51f8.asciidoc

@@ -0,0 +1,22 @@
+// 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.reindex({
+  max_docs: 10,
+  source: {
+    index: "my-index-000001",
+    query: {
+      function_score: {
+        random_score: {},
+        min_score: 0.9,
+      },
+    },
+  },
+  dest: {
+    index: "my-new-index-000001",
+  },
+});
+console.log(response);
+----