Update .travis.yml

Author: szczepanmasny

.travis.yml

@@ -3,6 +3,7 @@ node_js: 'node'
 
 notifications:
   webhooks: https://www.travisbuddy.com/?insertMode=update&only=failed,errored
+  email: false
 
 cache:
   yarn: true
@@ -34,4 +35,4 @@ jobs:
         - yarn load-template empty
         - yarn lint
         - yarn test:unit
-        - yarn build
+        - yarn build