dual license (#590)

cli/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.22.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2021"
 
-license = "GPL-3.0"
+license = "Apache-2.0 OR GPL-3.0"
 repository = "https://github.com/paritytech/subxt"
 documentation = "https://docs.rs/subxt-cli"
 homepage = "https://www.parity.io/"

cli/src/main.rs

@@ -1,18 +1,6 @@
 // Copyright 2019-2022 Parity Technologies (UK) Ltd.
-// This file is part of subxt.
-//
-// subxt is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// subxt is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with subxt.  If not, see <http://www.gnu.org/licenses/>.
+// This file is dual-licensed as Apache-2.0 or GPL-3.0.
+// see LICENSE for license details.
 
 #![deny(unused_crate_dependencies)]