add .drone.yml

.drone.yml

@@ -0,0 +1,21 @@
+kind: pipeline
+name: default
+
+steps:
+  - name: docker
+    image: plugins/docker
+    settings:
+      repo: dr.dnix.de/nginx-rtmp
+      registry: dr.dnix.de
+      auto_tag: true
+      tags: latest
+
+  - name: trigger
+    image: plugins/downstream
+    settings:
+      server: https://dev.dnix.de
+      token:
+        from_secret: drone_token
+      fork: true
+      repositories: []
+