Merge topic 'doc-compile-features-wcdh' into release-3.20

1f4ec3f4 Help: Do not recommend WCDH in cmake-compile-features(7)
1cc63f2c Help: Fix typos in cmake-compile-features(7)

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !6037