What the PP means is that you should turn your front derailer's cable adjuster barrel slightly to the left or right, and note any change in the alignment. Adjust as needed, until you get the result you want. This is also done when eliminating scraping against the cage - if desired, run through all the gear combinations and adjust to find the optimal tension where most combinations (or: all except the highest/lowest 1 or 2) don't produce scraping or clanking against the cage when you shift or ride.

Good luck, have fun!