Add Android AppLink json

.well-known/assetlinks.json

@@ -0,0 +1,14 @@
+[
+    {
+      "relation": [
+        "delegate_permission/common.handle_all_urls"
+      ],
+      "target": {
+        "namespace": "android_app",
+        "package_name": "org.koitharu.kotatsu",
+        "sha256_cert_fingerprints": [
+          "67:E1:51:00:BB:80:93:01:78:3E:DC:B6:34:8F:A3:BB:F8:30:34:D9:1E:62:86:8A:91:05:3D:BD:70:DB:3F:18"
+        ]
+      }
+    }
+]