Update

.github/workflows/jekyll.yml

@@ -27,6 +27,25 @@ concurrency:
   cancel-in-progress: false
 
 jobs:
+  free-disk-space: # from https://github.com/marketplace/actions/free-disk-space-ubuntu
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Free Disk Space (Ubuntu)
+      uses: jlumbroso/free-disk-space@main
+      with:
+        # this might remove tools that are actually needed,
+        # if set to "true" but frees about 6 GB
+        tool-cache: false
+
+        # all of these default to true, but feel free to set to
+        # "false" if necessary for your workflow
+        android: true
+        dotnet: true
+        haskell: true
+        large-packages: true
+        docker-images: true
+        swap-storage: true  
   # Build job
   build:
     runs-on: ubuntu-latest