missing verb :
"The goal of the course to teach you Rust." -> "The goal of the course is to teach you Rust."
missing of ? :
"to cover all it" -> "to cover all of it"
for this one, I'm not a native english speaker but it seems more correct to me. I'll let you check :)
This sentence was missing a negation: it was supposed to say this course does not cover unsafe Rust in depth, but actually said "we go into the subtle details". This PR adds the missing negation.
