typos, grammar

I'm not sure that this says what we want it to say.  The answer to 'why you've written it' is always 'to contribute'.  Perhaps it could be worded:
We'll probably nit-pick some of the things you've done, and ask you what your code does. We may also ask structural questions about how your code functions, why you used specific structures, and make recommendations to bring the code in line with our coding standards.

I'll leave it to the others here to decide if that is excessively verbose.