Bump Node from 12->13

Adam Hughes · Adam Hughes · commit a79e41e35217 · 2020-04-18T13:58:10.000-04:00
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -12,7 +12,7 @@ jobs:
   lint_markdown:
     <<: *defaults
     docker:
-      - image: node:12-slim
+      - image: node:13-slim
     steps:
       - checkout
       - run:
