Test for minimal metadata

Author: egonw

.github/workflows/gen_pdf.yaml

@@ -8,6 +8,18 @@ jobs:
     steps:
     - name: Checkout repository
       uses: actions/checkout@v4
+    - name: biohackathon name given?
+      run: |
+        sed -n '/^---$/,/^---$/{//b;p}' paper/paper.md | grep biohackathon_name
+    - name: biohackathon location given?
+      run: |
+        sed -n '/^---$/,/^---$/{//b;p}' paper/paper.md | grep biohackathon_location
+    - name: biohackathon url given?
+      run: |
+        sed -n '/^---$/,/^---$/{//b;p}' paper/paper.md | grep biohackathon_url
+    - name: Git repository given?
+      run: |
+        sed -n '/^---$/,/^---$/{//b;p}' paper/paper.md | grep git_url
     - uses: kohlerdominik/docker-run-action@v2.0.0
       with:
         image: ghcr.io/biohackrxiv/bhxiv-gen-pdf:master