Try to fix doc warnings

4 jobs for theo-moving in 28 minutes and 24 seconds (queued for 7 seconds)
Status Job ID Name Coverage
  Build
passed #127140
docker
build_linux_27

00:28:24

89.0%
passed #127141
docker
build_linux_36

00:26:54

89.0%
passed #127142
macosx
build_macosx_27

00:21:24

89.0%
passed #127143
macosx
build_macosx_36

00:19:54

89.0%