Fixing typos or missing elements. (#19)

* OCD

* Update k_macros.rs

src/b_multiple_choice.rs

@@ -258,7 +258,7 @@ pub fn answer_6() -> char {
 ///
 /// fn string_to_int_in_range(s: String) -> Result<u32, OutOfRangeError> {
 /// 	// Given: The u32::from_str_radix function returns Result<u32, ParseIntError>
-/// 	let n: u32 = u32::from_str_radix(&s,10)?;
+/// 	let n: u32 = u32::from_str_radix(&s, 10)?;
 ///
 /// 	match n {
 /// 		n if n < 5 => Err(OutOfRangeError::TooSmall),

src/k_macros.rs

@@ -25,7 +25,7 @@ macro_rules! map {
 /// generate this implementation for us, as such:
 ///
 /// ```
-/// use pba_qualifier_exam:impl_get;
+/// use pba_qualifier_exam::impl_get;
 /// impl_get! {
 /// 	// implements `Get<u32>` for `struct Six`
 /// 	Six: u32 = 6;
@@ -89,6 +89,8 @@ mod tests {
 
 	#[test]
 	fn impl_get() {
+		use super::Get;
+		
 		impl_get!(
 			// should generate `struct Foo` that implements `Get<u32>`
 			Foo: u32 = 10;
@@ -102,6 +104,7 @@ mod tests {
 		// assert_eq!(Foo::get(), 10);
 		// assert_eq!(Bar::get(), 42);
 		// assert_eq!(Baz::get(), 21);
+		assert_eq!(true, false, "Make sure to remove this line and uncomment the tests above");
 
 		// As an extra, ungraded, challenge, try to make this work.
 		// This is not part of the main problem because it requires the nightly compiler.