Update community.json

Fix links

community.json

@@ -316,7 +316,7 @@
         "level": 0,
         "revision": "a3ab2be7a3400f9230c5e0c76cc246f9d8fa54d6",
         "state": "working",
-        "url": "https://github.com/liberodark/emby_ynh"
+        "url": "https://github.com/YunoHost-Apps/emby_ynh"
     },
     "ethercalc": {
         "branch": "master",
@@ -1060,7 +1060,7 @@
         "level": 3,
         "revision": "ee8ea4b9a32197dedde2a120ad3113c119f17fdc",
         "state": "working",
-        "url": "https://github.com/liberodark/onlyoffice_ynh"
+        "url": "https://github.com/YunoHost-Apps/onlyoffice_ynh"
     },
     "openidsimplesamlphp": {
         "branch": "master",
@@ -1215,7 +1215,7 @@
         "level": 0,
         "revision": "f4a6127b32878ea6a806bab65e9f46fab440a4be",
         "state": "working",
-        "url": "https://github.com/liberodark/plexmediaserver_ynh"
+        "url": "https://github.com/YunoHost-Apps/plexmediaserver_ynh"
     },
     "plonecms": {
         "branch": "master",