Try webhook for docker hub.

.travis.yml

@@ -11,3 +11,13 @@ jobs:
         - curl -fsSL https://goss.rocks/install | sudo sh
       script:
         - ./build-n-test.sh
+
+notifications:
+  webhooks:
+    urls:
+      - https://registry.hub.docker.com/u/plusminus/jdownloader2-headless/trigger/e50efaab-36ed-4900-b08d-3cf8944ca9cd/
+    on_success: always
+    on_failure: never
+    on_start: never
+    on_cancel: never
+    on_error: never