Add license

assets/layers/questions/dogs_outside.svg.license

@@ -0,0 +1,2 @@
+SPDX-FileCopyrightText: OpenClipArt; Mannivu
+SPDX-License-Identifier: PUBLIC-DOMAIN

assets/layers/questions/license_info.json

@@ -59,6 +59,18 @@
       "https://commons.wikimedia.org/wiki/File:Pictograms-nps-pets_on_leash-2.svg"
     ]
   },
+  {
+    "path": "dogs_outside.svg",
+    "license": "PUBLIC-DOMAIN",
+    "authors": [
+      "OpenClipArt",
+      "Mannivu"
+    ],
+    "sources": [
+      "https://freesvg.org/no-dogs-round-sign-vector-graphics",
+      "https://github.com/pietervdvn/MapComplete/pull/1948"
+    ]
+  },
   {
     "path": "nfc_card.svg",
     "license": "CC0-1.0",

assets/layers/questions/open24_7.svg.license

@@ -1,2 +1,2 @@
 SPDX-FileCopyrightText: Pieter Vander Vennet
-SPDX-License-Identifier: CC0
+SPDX-License-Identifier: CC0-1.0