Update README.rtf

Added license headers

scripts/slec/cadence/README.rtf

@@ -5,4 +5,7 @@
 \margl1440\margr1440\vieww11520\viewh8400\viewkind0
 \pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
 
-\f0\fs24 \cf0 Add assume (data_assert2.sv and insn_assert2.sv) files and bind (cv32e40p_bind2.sv) files to flist file inside rtl directory. }
+\f0\fs24 \cf0 
+// Copyright 2024 <your-organization>
+// SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
+Add assume (data_assert2.sv and insn_assert2.sv) files and bind (cv32e40p_bind2.sv) files to flist file inside rtl directory. }