Add Blog App listing#89

boxel-submission-bot wants to merge 1 commit intomaincardstack/boxel-catalog:mainfrom

room-IUlTRmFIbm5QS3RlZ1lFYnlIcjpsb2NhbGhvc3Q/blog-appcardstack/boxel-catalog:room-IUlTRmFIbm5QS3RlZ1lFYnlIcjpsb2NhbGhvc3Q/blog-appCopy head branch name to clipboard