Fix mastodon link to itself

david/mastodon/profile.json

@@ -20,7 +20,7 @@
     "endpoints": {
         "sharedInbox": "https://larlet.fr/dummy"
     },
-    "id": "https://larlet.fr/david/",
+    "id": "https://larlet.fr/david/mastodon/profile.json",
     "image": {
         "mediaType": "image/jpeg",
         "type": "Image",