difference-between-bestspeed-and-bestcoverage.md: index link text uses stale v9-era terminology

[lyzhang0113]

Found while reviewing docs in PR #30 — a terminology-currency question, not a structural defect, so left untouched there.

File: barcode-reader/web/scan-setting/difference-between-bestspeed-and-bestcoverage.md (and its entry in scan-setting/index.md)

The index link text ("Difference between BestSpeed and BestCoverage") uses old v9-era terminology, while the page's own H1/body use the current v10 template names (speed/coverage/balance/single, SpeedFirst/ReadRateFirst/Balance/Single). Worth deciding whether to update the index link text to match current terminology.

[neeraj001122]

This FAQ is already marked as Version 9x or below for users to understand.