Adding link in README.md to Solaris configuration.
Adding link in README.md to Solaris configuration.

Signed-off-by: Abhijeeth Nuthan <c984f83ff185d65ff5101a0e4554989c5828e94c@oracle.com>

laijs/specs,ujuc/specs,hqhq/runtime-spec,wking/opencontainer-runtime-spec,cloudfoundry-incubator/specs,opencontainers/specs,vbatts/specs,hqhq/specs,opencontainers/runtime-spec,wking/opencontainer-specs,jonboulle/specs