Refresh wiki example documentation
Document local example build workflow
Updated DNS Overview (markdown)
Add further reading section with links, replace em dashes, and remove status column from protocol example table
Updated DNS pages to match wiki style/tone, fixed typos, and fixed paths to match repo structure
Add DNS example
Remove titles since GitHub Wiki already titles the filenames
Tighten wiki copy, fix wiki links, add DNS/TFTP placeholders Co-authored-by: Cursor <cursoragent@cursor.com>