Add Blog App listing#83

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

room-IVJVWm9xYUl0U1FTSkdTdHhtaTpsb2NhbGhvc3Q/blog-appcardstack/boxel-catalog:room-IVJVWm9xYUl0U1FTSkdTdHhtaTpsb2NhbGhvc3Q/blog-appCopy head branch name to clipboard