[R] Where to get quantiles (1st parameter q) for pnorm? (Normal approximation to binomial distribution)

[mviljamaa]

I'm doing Normal approximation to binomial distribution.

My variables are generated by rbinom.

Here: 
http://msemac.redwoods.edu/~darnold/math15/spring2013/R/Activities/ApproxBinomWithNorm.html

it's claimed that normal approximation is done using the command pnorm.

Question:

Where to get quantiles (1st parameter q) for pnorm?

-Matti