Set target-branch to master

.travis.yml

@@ -5,15 +5,16 @@ node_js:
 deploy:
   provider: pages
   skip-cleanup: true
+  target-branch: master
   github-token: $GITHUB_TOKEN  # Set in the settings page of your repository, as a secure variable
   keep-history: true
   local-dir: dist
   on:
-    branch: master
+    branch: develop
 
 branches:
   only:
-    master
+    develop
 
 script:
   - npm run lint