add caching to ci

thedumbterminal · thedumbterminal · commit e2173c60c144 · 2017-03-05T22:59:49.000Z
diff --git a/.travis.yml b/.travis.yml
@@ -1,2 +1,6 @@
 sudo: false
 language: node_js
+
+cache:
+  directories:
+  - node_modules
