Push notifications to Slack

appveyor.yml

@@ -18,3 +18,18 @@ install:
 
 test_script:
   - cmd: platformio run -d %PLATFORMIO_PROJECT_DIR%
+
+notifications:
+  - provider: Email
+    to:
+      - me@ikravets.com
+    on_build_success: false
+    on_build_failure: false
+    on_build_status_changed: false
+
+  - provider: Slack
+    incoming_webhook:
+      secure: E9H0SU0Ju7WLDvgxsV8cs3J62T3nTTX7QkEjsczN0Sto/c9hWkVfhc5gGWUkxhlD975cokHByKGJIdwYwCewqOI+7BrcT8U+nlga4Uau7J8=
+    on_build_success: false
+    on_build_failure: true
+    on_build_status_changed: true