Push notification to Slack

appveyor.yml

@@ -11,3 +11,13 @@ install:
 
 test_script:
   - cmd: tox
+
+notifications:
+  - provider: Email
+    on_build_success: false
+    on_build_failure: false
+    on_build_status_changed: false
+
+  - provider: Slack
+    incoming_webhook:
+      secure: E9H0SU0Ju7WLDvgxsV8cs3J62T3nTTX7QkEjsczN0Sto/c9hWkVfhc5gGWUkxhlD975cokHByKGJIdwYwCewqOI+7BrcT8U+nlga4Uau7J8=