Fix license

LICENSE

@@ -1,4 +1,8 @@
-File containing the license of your package.
+Paperless-ngx Pacakge for YunoHost
+Copyright (C) 2022 YunoHost Apps Team
 
-More information here:
+This program 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.
-https://yunohost.org/packaging_apps_guidelines#yep-1-3
+
+This program 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 this program. If not, see <https://www.gnu.org/licenses/>.

manifest.json

@@ -9,14 +9,14 @@
     "version": "1.6~ynh1",
     "url": "https://paperless-ngx.com",
     "upstream": {
-        "license": "GPL-v3-or-later",
+        "license": "GPL-3.0-or-later",
         "website": "https://paperless-ngx.com",
         "demo": "https://demo.paperless-ngx.com/",
         "admindoc": "https://paperless-ngx.readthedocs.io/en/latest/index.html",
         "userdoc": "https://paperless-ngx.readthedocs.io/en/latest/usage_overview.html",
         "code": "https://github.com/paperless-ngx/paperless-ngx"
     },
-    "license": "free",
+    "license": "GPL-3.0-or-later",
     "maintainer": {
         "name": "Tagada"
     },