Only build on master branch

BoeingX · BoeingX · commit a0e1c776f4d7 · 2018-10-14T18:49:03.000+02:00
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -4,6 +4,9 @@ jobs:
   build:
     docker:
       - image: fpco/stack-build:lts-12.9
+    branches:
+      only:
+        - master
     steps:
       - checkout
 
