add autodeploy travis yaml

.travis.yml

@@ -0,0 +1,15 @@
+language: node_js
+node_js:
+  - "10"
+install:
+  - yarn
+script:
+  - yarn run build
+deploy:
+  provider: pages
+  skip-cleanup: true
+  github-token: $GITHUB_TOKEN # Set in the settings page of your repository, as a secure variable
+  keep-history: true
+  local-dir: build
+  on:
+    branch: master