switch from push to pull_request for CI workflow

mmcky · mmcky · commit 827de7d4b647 · 2021-09-28T09:43:05.000+10:00
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -1,5 +1,5 @@
 name: Build Project [using jupyter-book]
-on: [push]
+on: [pull_request]
 jobs:
   build:
     runs-on: ubuntu-latest
