Merge branch 'fix/handbook-numerics' into 'master'
Fix/handbook numerics
See merge request !1442 (merged)
(cherry picked from commit 88fb608b)
79f8e95a [doc][handbook] each matrix entry is related to control volume 1b490505 [doc][handbook] more than one cc scheme is available now 4d279858 [doc][handbook] use pdf for interaction volume pic fcb797eb [doc][handbook] remove duplicate word