Update the old links to the lastest ones in CONTRIBUTING.rst and HACKING.rst. Change-Id: I1ac24e49deeb2d86be18e18033e611fb230c5f5b
* Add CONTRIBUTING.rst file was added to provide information for new contributors. * Add HACKING.rst Change-Id: Ida2d1dafeb36d54d0721a86fc6962cc220ea2851