simple method to polar align

With a cheaper CG5 or Antares mount and assuming the polar scope is
properly housed along the polar axis, a good method to roughly polar align
is to line up the cross hair axis with the small polaris circle in the polar
scope to Beta Cassiopia, Gamma Ursa Minor and Eta Ursa Major (the last star
on the handle) then move polaris into the circle. Make sure the circle on
the axis is pointing toward Cassiopia since the NCP is toward the big
dipper.