Removed all TOCs now that GitHub auto-generates them.
Also updated the documentation requirements doc removing the requirement
to add a TOC.
Fixes: #2022.
Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
Currently in kata 2.x, we do not have docker support, this PR removes
the docker documentation with sysctls.
Fixes#2029
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>