Doc update to reflect restructuring

12 jobs for master in 3 minutes (queued for 4 seconds)
Status Name Job ID Coverage
  Build
passed build #18746

00:02:47

passed cross: [4.07] #18747

00:02:17

passed cross: [4.08] #18748

00:02:14

failed cross: [4.09] #18749
allowed to fail

00:01:14

failed cross: [4.10] #18750
allowed to fail

00:01:14

failed cross: [4.11] #18751
allowed to fail

00:01:14

failed cross: [4.12] #18752
allowed to fail

00:00:50

passed nix-build #18743
nix

00:00:08

passed nix-generators #18744
nix

00:00:01

passed nix-lib #18745
nix

00:00:01

 
  Test
passed metrics #18753
nix

00:00:03

 
  Deploy
passed docker-image #18754
nix

00:00:09

 
Name Stage Failure
failed
cross: [4.09] Build
| - install qcheck-core       0.13
| - install qcheck-ounit 0.13
| - install result 1.5
| - install stdlib-shims 0.1.0
+-

The former state can be restored with:
opam switch import "/home/opam/.opam/4.09/.opam-switch/backup/state-20211018055112.export"
ERROR: Job failed: exit code 1
failed
cross: [4.11] Build
| - install qcheck-core       0.13
| - install qcheck-ounit 0.13
| - install result 1.5
| - install stdlib-shims 0.1.0
+-

The former state can be restored with:
opam switch import "/home/opam/.opam/4.11/.opam-switch/backup/state-20211018055113.export"
ERROR: Job failed: exit code 1
failed
cross: [4.10] Build
| - install qcheck-core       0.13
| - install qcheck-ounit 0.13
| - install result 1.5
| - install stdlib-shims 0.1.0
+-

The former state can be restored with:
opam switch import "/home/opam/.opam/4.10/.opam-switch/backup/state-20211018055113.export"
ERROR: Job failed: exit code 1
failed
cross: [4.12] Build
| - install num        1.3
| - install ocamlbuild 0.14.0
| - install ocamlfind 1.8.1
| - install ocamlgraph 1.8.8
+-

The former state can be restored with:
opam switch import "/home/opam/.opam/4.12/.opam-switch/backup/state-20211018055113.export"
ERROR: Job failed: exit code 1