Add notification script

.travis.yml

@@ -7,4 +7,4 @@ services:
 script:
   - python3 generate.py
 after_success:
-  - curl -X POST -H 'Content-type: application/json' --data '{"text":"Blender Docker images deployed to Docker Hub :party:", "icon_emoji": ":blender-3d:"}' ${WEBHOOK_URL}
+  - ./notify.sh

notify.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+curl -X POST -H 'Content-type: application/json' --data '{"text":"Blender Docker images deployed to Docker Hub :party:", "icon_emoji": ":blender-3d:"}' ${WEBHOOK_URL}