fixed license name in readme md and contributing md

CONTRIBUTING.md

@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2024 suyu emulator project
-SPDX-License-Identifier: MIT
+SPDX-License-Identifier: GPL v3
 -->
 
 **The Contributor's Guide has moved to [the suyu wiki](https://gitlab.com/suyu2/suyu/-/wikis/home).**

README.md

@@ -1,6 +1,6 @@
 <!--
 SPDX-FileCopyrightText: 2024 suyu emulator project
-SPDX-License-Identifier: MIT
+SPDX-License-Identifier: GPL v3
 -->
 
 <h4>This project DOES NOT suppot piracy, you are required to source your own games and keys, we make no money off this project (mainly so that Nintendon't sue us lol)</h4>