Tidy up

docs/lectures/compilers/06_applicative_functors.md

@@ -28,7 +28,7 @@ fmap2 :: (a -> b -> c) -> f a -> f b -> f c
 fmap3 :: (a -> ... n) -> f a -> ... f n
 ```
 
-`Functor f` can do `fmap1` however cannot do `fmap0` or `fmap2` etc.
+`Functor f` can do `fmap1`; however, it cannot do `fmap0` or `fmap2` etc.
 
 **Remember**: `a -> b -> c == a -> (b -> c)`
 
@@ -92,4 +92,3 @@ All parse does is apply a parser
 Where `P` is the constructor
 
 `parse ( P p ) = p`
-