Update README.md/README-ru.md's discovery section to reflect the
recent fixes: the 0x09 (BUSY) TLV type, PSID-only source recovery,
TYPE-based model detection for Advertisement-only devices, and the
split connect/query timeouts plus DNS-lookup gating in the TCP/93
sweep.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>