The keirin plan looks good - for a keirin rider.
But (I suspect) you're a roadie who wants to race a bit on the track for speed and fun?
If so, it's really a question of just doing more speedwork, shorter intervals (think "laps" not "minutes") with longer recoveries betwixt 'em.
But most of the typical weekly racing programs are mass start, scratches, miss n outs, point races, so standard roadie training should get you started... as long as you're doing quality and not quantity.
Take my advice with salt... I'm an old roadie but new on the track. OTOH the guy that won my class the last 3 weeks is a classic slow twitch roadie who just happens to be very effin fast.