docs: parse-headers.rst: Fix a typo

Replace "vantage" with "advantage" in the description of userspace API
cross-references.

Signed-off-by: Ankit Khushwaha <ankitkhushwaha.linux@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251115114233.32239-1-ankitkhushwaha.linux@gmail.com>
This commit is contained in:
Ankit Khushwaha 2025-11-15 17:12:33 +05:30 • committed by Jonathan Corbet
commit 6ae0f20727