appveyor.yml in metanorma-csand-1.1.4 vs appveyor.yml in metanorma-csand-1.1.5

@@ -1,7 +1,10 @@
 version: '{build}'
 
+cache:
+  - vendor/bundle
+
 environment:
   matrix:
     - RUBY_VERSION: 25
     - RUBY_VERSION: 24
     - RUBY_VERSION: 23
@@ -15,16 +18,16 @@
   - ps: . { iwr -useb https://raw.githubusercontent.com/metanorma/metanorma-build-scripts/master/appveyor.ps1 } | iex
   - refreshenv
 
 build_script:
   - set PATH=C:\Ruby%RUBY_VERSION%\bin;%PATH%
+  - bundle config --local path vendor/bundle
   - bundle update
   - bundle install
 
 before_test:
   - ruby -v
   - gem -v
   - bundle -v
 
 test_script:
-  - bundle exec rake
-
+  - bundle exec rake
\ No newline at end of file