Fix Sphinx warnings

12 jobs for doc_fix in 12 minutes and 16 seconds (queued for 1 second)
Status Name Job ID Coverage
  Build Docker
passed build_docker_from_cache #1192290

00:00:14

 
  Test
passed test_mpi #1192292

00:00:31

passed test_serial #1192291

00:04:26

86.0%
 
  Demo Runs
passed run_bernoulli #1192299

00:00:31

passed run_curve_fitting #1192300

00:00:29

passed run_getting_started_1 #1192295

00:00:33

passed run_getting_started_2 #1192296

00:00:56

passed run_getting_started_3 #1192297

00:02:42

passed run_getting_started_mf #1192298

00:07:35

passed run_ipynb0 #1192293

00:01:30

passed run_ipynb1 #1192294

00:00:42

passed run_visual_mgvi #1192301

00:01:22