Merge branch 'jz/regex-2' into jz/regex-3

Author: jackzhxng

src/regex.cpp

@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 #include <pytorch/tokenizers/pcre2_regex.h>
 #include <pytorch/tokenizers/re2_regex.h>
 #include <pytorch/tokenizers/regex.h>