Added Telegram notification step and images from private repo

.drone.yml

@@ -4,11 +4,24 @@ name: hello world
 
 steps:
 - name: Hello world!
-  image: alpine
+  image: registry.cuzo.dev/library/alpine
   commands:
   - echo Hello world!
 
 - name: ¡Hola mundo!
-  image: alpine
+  image: registry.cuzo.dev/library/alpine
   commands:
   - echo ¡Hola mundo!
+
+- name: send telegram notification
+  image: registry.cuzo.dev/appleboy/drone-telegram
+  when:
+      status: [success, failure]
+  settings:
+    to:
+      from_secret: TG_USER
+    token:
+      from_secret: TG_TOKEN
+
+image_pull_secrets:
+- PRIVATE_DOCKER_REGISTRY