Changed documentation to point to the collectd plugin that we have modified.
Changed documentation to point to the collectd plugin that we have modified.

kairosdb/kairosdb,rdettai/kairosdb,kairosdb/kairosdb,ppbizapps/kairosdb,kairosdb/kairosdb,rdettai/kairosdb,ppbizapps/kairosdb,rdettai/kairosdb,ppbizapps/kairosdb,ppbizapps/kairosdb,kairosdb/kairosdb,rdettai/kairosdb,ppbizapps/kairosdb,kairosdb/kairosdb,rdettai/kairosdb,kairosdb/kairosdb