.travis.yml in goodcheck-2.4.1 vs .travis.yml in goodcheck-2.4.2

@@ -1,5 +1,11 @@
 language: ruby
 rvm:
-  - 2.4.6
-  - 2.5.5
-  - 2.6.3
+  - 2.4.7
+  - 2.5.6
+  - 2.6.4
+script:
+  - bundle exec rake
+  - bundle exec rake docs:build
+branches:
+  only:
+    - master