Update travis build

Author: jakearchibald

.travis.yml

@@ -1,10 +1,10 @@
 language: generic
 script:
-- bash "./compile.sh"
+  - bash "./compile.sh"
 deploy:
   local_dir: docs
   provider: pages
   skip_cleanup: true
-  github_token: $GITHUB_TOKEN  # Set in the settings page of your repository, as a secure variable
+  github_token: $GITHUB_TOKEN # Set in the settings page of your repository, as a secure variable
   on:
-    branch: master
+    branch: main