Add license #1944

Author: vismayajochem

base/static/project_detail_pages_content/.PROJECT_TEMPLATE.jsonc

@@ -1,3 +1,11 @@
+/*!
+* SPDX-FileCopyrightText: 2022 Jonas Huber <jh-RLI> © Reiner Lemoine Institut
+* SPDX-FileCopyrightText: 2022 Christian Winger <wingechr>
+* SPDX-FileCopyrightText: 2024 Eike Broda <ebroda>
+* SPDX-FileCopyrightText: oeplatform <https://github.com/OpenEnergyPlatform/oeplatform/>
+* SPDX-License-Identifier: MIT
+*/
+
 {
     "id": "template", // unique project identifier
     "fullTitle": "", // Institute title