fix(ci): use deploy-demo script (#189)

Author: kevinchappell

.travis.yml

@@ -30,4 +30,4 @@ jobs:
           - yarn travis-deploy-once "yarn semantic-release"
         skip_cleanup: true
       after_deploy:
-        - git push --force "https://${GH_TOKEN}@github.com/${GH_REPO}.git" $(git subtree split --prefix demo master):gh-pages
+        - yarn deploy:demo

tools/deploy-demo.js

@@ -7,7 +7,7 @@ async function deployDemo() {
   const gitCommands = [
     'git add demo/',
     'git commit -am "add demo"',
-    `git push https://${GH_TOKEN}@${GH_REPO} $(git subtree split --prefix demo $(git rev-parse --abbrev-ref HEAD)):gh-pages --force`,
+    `git push https://${GH_TOKEN}@github.com/${GH_REPO}.git $(git subtree split --prefix demo $(git rev-parse --abbrev-ref HEAD)):gh-pages --force > /dev/null 2>&1`,
     'git reset --hard HEAD~1',
   ]