docs: Simplified internal links.
docs: Simplified internal links.

Github is clever enough to expand relative links to documents within
the project. This makes the documentation less cluttered and easier to
maintain.

Signed-off-by: James O. D. Hunt <348fbaadfbada55ea105602bf5609e23ac1c4898@intel.com>

clearcontainers/runtime,chavafg/runtime,devimc/runtime,devimc/runtime,clearcontainers/runtime,chavafg/runtime