Update cd.yml

Author: mateuseap

.github/workflows/cd.yml

@@ -27,13 +27,16 @@ jobs:
           git config --global user.name "github-actions-bot"
           git config --global user.email "[email protected]"
 
+          # Fetch all branches and make sure we have history for gh-pages
+          git fetch origin gh-pages
+
           # Delete all files except .git
           find . -maxdepth 1 ! -name '.git' ! -name '.' -exec rm -rf {} +
 
-          # Create a new branch
+          # Create a new branch from gh-pages
           timestamp=$(date +%s)
           branch_name="build-update-${timestamp}"
-          git checkout -b $branch_name
+          git checkout -b $branch_name origin/gh-pages
 
           # Copy files from build folder
           cp -r /tmp/build/* .