Add documentation for initfile parameters

4 jobs for feature/update_doc in 56 minutes and 31 seconds (queued for 8 minutes and 20 seconds)
Status Job ID Name Coverage
  Test
passed #21137
dune-2.6

00:23:33

passed #21138
dune-2.7

00:31:02

passed #21139
dune-git

00:33:30

passed #21140
dune-git-full

00:39:53