Use circleci 2.1 (and not 2.0 )

axic · axic · commit 5b12ccd82e5f · 2018-12-03T13:22:20.000Z
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -1,5 +1,5 @@
 workflows:
-  version: 2
+  version: 2.1
   node-multi-build:
     jobs:
       - node-v4:
