docs: add debug lines

scripts/find-unused-images.sh

@@ -16,6 +16,7 @@ git fetch --all
 branches="master"
 version_branches=$(git branch --list "version-[0-9]-[0-9]")
 branches+=" $version_branches"
+echo "Branches: $branches"
 
 for current_branch in $branches; do
     echo "Current branch: $current_branch"
@@ -24,15 +25,18 @@ for current_branch in $branches; do
     find docs -type f -name "*.md" -exec grep -Hn "\.webp" {} + > docs_used_images.json
     find _partials -type f -name "*.mdx" -exec grep -Hn "\.webp" {} + > partials_used_images.json
     cat docs_used_images.json partials_used_images.json > used_images.json
+    echo "Created used_images.json"
 
     line_number=1
     for img in $(cat all_images.json); do
         if grep -q $img used_images.json; then
-            sed -i .bak "${line_number}s|.*|${img},FOUND_USED|" all_images.json
+            sed -i "${line_number}s|.*|${img},FOUND_USED|" all_images.json
         fi
         ((line_number++))
     done
 
+    echo "Finished processing branch $current_branch"
+
 done
 
 # Remove all marked used files to make up the list