Update about.json (#2)

about.json

 {
-  "about_url": "Put your theme's public repo or Meta topic URL here",
-  "license_url": "Put your theme's LICENSE URL here",
+  "about_url": "https://meta.discourse.org/t/custom-logo-link/316531",
+  "license_url": "https://github.com/discourse/discourse-custom-logo-link/blob/main/LICENSE",
   "assets": {},
-  "name": "discourse-custom-logo-link",
+  "name": "Custom Logo Link",
   "component": true
 }