buildbot master: make "Recent GM Results" link point to skiadocs page
buildbot master: make "Recent GM Results" link point to skiadocs page

R=borenet@google.com

Review URL: https://codereview.chromium.org/47553007

git-svn-id: 32fc27f4dcfb6c0385cd9719852b95fe6680452d@12001 2bbb7eff-a529-9590-31e7-b0007b416f81

Tiger66639/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,Tiger66639/skia-buildbot,Tiger66639/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot