fix github yaml syntax

fangohr · fangohr · commit cf19cc7c9ce1 · 2022-01-05T09:48:51.000+01:00
diff --git a/.github/workflows/nbval.yml b/.github/workflows/nbval.yml
@@ -1,10 +1,6 @@
 name: nbval
 
-on:
-  release:
-    types: [created]
-  push:
-    all
+on: [push, pull_request]
 
 jobs:
   docker-build-and-nbval:
