Remove experimental references from documentation.

14 jobs for master in 32 minutes and 22 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #96637
distcheck-linux-clang10-debug

00:14:37

passed #96636
distcheck-linux-clang10-release

00:13:07

passed #96640
distcheck-linux-coverage

00:08:27

90.8%
passed #96639
distcheck-linux-gcc10-debug

00:16:31

passed #96638
distcheck-linux-gcc10-release

00:13:11

passed #96635
distcheck-linux-gcc9-debug-asan-ubsan

00:12:05

passed #96634
distcheck-linux-gcc9-release

00:09:03

passed #96645
pages

00:02:39

passed #96633
windows
windows-debug

00:03:38

failed #96644
pages

00:02:04

failed #96641
pages

00:00:56

 
  Bench
manual #96642
pylene-benchmarks allowed to fail manual
distbench-linux-gcc9-release
 
  Deploy
passed #96643
package

00:01:04

passed pages:deploy

00:00:01