Add site improvements: favicon, 404 page, RSS feed, and fix broken links#36

streamcode9 wants to merge 1 commit intomainstreamcode9/streamcode9.github.io:mainfrom

claude/suggest-repo-improvements-01BctNkc9jJU5ZCP3w8Va2Lastreamcode9/streamcode9.github.io:claude/suggest-repo-improvements-01BctNkc9jJU5ZCP3w8Va2LaCopy head branch name to clipboard