docs: add telemetry section to quickstart guide
docs: add telemetry section to quickstart guide

To start collecting telemetry on upstream clusters,
we add a new section to the quickstart guide that
requests users to enable the telemetry.

Signed-off-by: Travis Nielsen <a8b474fdb3f77f44446f0ab9ddca8147b09b3a9e@redhat.com>

rook/rook,rook/rook,rook/rook,rook/rook,rook/rook