gmt

Check if polar coordinate projection is used (#8917)

use defaut offset (+1) instead of 0 (#8916)

doc(grdmask): Fix missing dash in `-Nz` option reference (#8913)

Bump lycheeverse/lychee-action from 2.7.0 to 2.8.0 (#8911)

Add new modifier, +i, to -A option. (#8909)