Update demo copyright headers.

demo/configs/webpack/common.js

@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 const { resolve } = require("path");
 const HtmlWebpackPlugin = require("html-webpack-plugin");
 const FriendlyErrorsWebpackPlugin = require("friendly-errors-webpack-plugin");

demo/configs/webpack/dev.js

@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 // development config
 const { merge } = require("webpack-merge");
 const commonConfig = require("./common");

demo/configs/webpack/prod.js

@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 // production config
 const { merge } = require("webpack-merge");
 const { resolve } = require("path");