sure theres a how to for adjustment on here :-/ but its fiddly and mine still isnt perfect either,,,
How to for service but doesn't cover adjustment.
Strip the rear brakes, deglaze the drum with emery paper, file 6 - 10 mm leading and trailing edges on the shoe friction material. Make sure that the operating levers pivot properly, they can seize up. Refit the drum.
Get underneath and drop one of the exhaust heatshields so you can see the handbrake cable adjuster.....loosen it right off.
Adjust the handbrake shoes through the hole in the drum until they just lock the drum, pull the handbrake lever hard a few times and bang the drum with a wooden mallet or bit of wood to help the shoes to centralise.
Now back off the shoe adjuster slightly untill the drum is free, dont over-do this but dont leave them binding either...the difference is only one notch.
Tighten the cable adjuster so the brakes are locked on the third click.
Replace heatshield etc.
On an auto, if you use the handbrake to control speed on the morning-reverse-off-the-drive then it will keep the shoes and drum face in good condition.