* add readme section and support file
* [doc] Document anonymize levels in README and SUPPORT
Reviewer feedback: mention both --anonymize-level values, not just -A.
Wording follows the flag help in client/cmd/root.go.
* Apply suggestion from @cubic-dev-ai[bot]
* Update SUPPORT.md
* adjust parameter descriptions
* [doc] Fix duplicated sentence in SUPPORT.md
The cubic suggestion replaced only part of the -U sentence, leaving the
original line orphaned above it and dropping the blank line before the
docs links.
* [doc] Tighten anonymization claims in README and SUPPORT
Strict mode keeps labels under netbird.io, so naming "the NetBird domains"
overstated what it masks. Name the three peer domains instead.
Anonymization is not full redaction: internal ranges survive at the default
level and interface details are never masked, so say that rather than
implying the bundle is safe to post unread.
