.travis.yml in metanorma-vsd-0.3.3 vs .travis.yml in metanorma-vsd-0.4.1

@@ -1,16 +1,21 @@
-dist: trusty
-sudo: false
+# Auto-generated !!! Do not edit it manually
+# use ci-master https://github.com/metanorma/metanorma-build-scripts
 language: ruby
+cache: bundler
+os:
+- linux
+- osx
 rvm:
-  - 2.5
-  - 2.4
-  - ruby-head
-before_install:
-  - gem install bundler -v 1.16.1
-  - npm install -g puppeteer
-  - npm install
-  - unset _JAVA_OPTIONS
+- 2.5
+- 2.4
+- ruby-head
+before_install: 
+- nvm install 8
+- npm install -g puppeteer
+- npm install
+- gem install bundler -v "~> 2"
+- bundle update
 matrix:
   allow_failures:
     - rvm: ruby-head