xenia/.github/CONTRIBUTING.md, branch texsplit

xenia/.github/CONTRIBUTING.md, branch texsplit Xbox 360 emulator Move CONTRIBUTING.MD to .github 2017-03-18T14:51:11+00:00 Margen67 Margen67@users.noreply.github.com 2017-03-17T15:41:57+00:00 410dfe90556bd01dd821497863524aea044a6e87 Fix links to CONTRIBUTING.md. Change Github releases link to Artifacts since the github releases are dead and outdated.

Fix links to CONTRIBUTING.md.
Change Github releases link to Artifacts since the github releases are dead and outdated.