.travis.yml in relaton-iso-bib-0.2.0 vs .travis.yml in relaton-iso-bib-0.2.1

- old
+ new

@@ -1,14 +1,17 @@
-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
-  - 2.3
-  - ruby-head
-
-before_install: gem install bundler -v 2.0.1
-
+- 2.5
+- 2.4
+- ruby-head
+before_install:
+- gem install bundler -v 2.0.1
+- bundle update
 matrix:
   allow_failures:
     - rvm: ruby-head