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>
There is a bug in the CI script checking spelling that causes it
to skip any text that follows a horizontal ruler.
(https://github.com/kata-containers/tests/issues/3448)
Solution: replace one horizontal ruler marker with another that
does not trip the spell-checking script.
Fixes: #1793
Signed-off-by: Christophe de Dinechin <dinechin@redhat.com>