[doc] add anchor document

6 jobs for fix_anchor_doc in 57 minutes and 2 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Build
passed #138787
docker
build_linux_27

00:10:47

45.0%
passed #138788
docker
build_linux_36

00:09:26

45.0%
passed #138789
macosx
build_macosx_27

00:09:01

45.0%
passed #138790
macosx
build_macosx_36

00:08:46

45.0%
 
  Docker
passed #138791
docker-build
docker_linux_27

00:36:30

48.0%
passed #138792
docker-build
docker_linux_36

00:37:14

48.0%